diff --git a/accounting/accounting.go b/accounting/accounting.go
index d2d287fb..5277b1d3 100644
--- a/accounting/accounting.go
+++ b/accounting/accounting.go
@@ -40,9 +40,7 @@ func (b *BalanceRequestBody) GetOwnerID() *refs.OwnerID {
 }
 
 func (b *BalanceRequestBody) SetOwnerID(v *refs.OwnerID) {
-	if b != nil {
-		b.ownerID = v
-	}
+	b.ownerID = v
 }
 
 func (b *BalanceRequest) GetBody() *BalanceRequestBody {
@@ -54,9 +52,7 @@ func (b *BalanceRequest) GetBody() *BalanceRequestBody {
 }
 
 func (b *BalanceRequest) SetBody(v *BalanceRequestBody) {
-	if b != nil {
-		b.body = v
-	}
+	b.body = v
 }
 
 func (d *Decimal) GetValue() int64 {
@@ -68,9 +64,7 @@ func (d *Decimal) GetValue() int64 {
 }
 
 func (d *Decimal) SetValue(v int64) {
-	if d != nil {
-		d.val = v
-	}
+	d.val = v
 }
 
 func (d *Decimal) GetPrecision() uint32 {
@@ -82,9 +76,7 @@ func (d *Decimal) GetPrecision() uint32 {
 }
 
 func (d *Decimal) SetPrecision(v uint32) {
-	if d != nil {
-		d.prec = v
-	}
+	d.prec = v
 }
 
 func (br *BalanceResponseBody) GetBalance() *Decimal {
@@ -96,9 +88,7 @@ func (br *BalanceResponseBody) GetBalance() *Decimal {
 }
 
 func (br *BalanceResponseBody) SetBalance(v *Decimal) {
-	if br != nil {
-		br.bal = v
-	}
+	br.bal = v
 }
 
 func (br *BalanceResponse) GetBody() *BalanceResponseBody {
@@ -110,7 +100,5 @@ func (br *BalanceResponse) GetBody() *BalanceResponseBody {
 }
 
 func (br *BalanceResponse) SetBody(v *BalanceResponseBody) {
-	if br != nil {
-		br.body = v
-	}
+	br.body = v
 }
diff --git a/accounting/grpc/service.go b/accounting/grpc/service.go
index 78adedbc..91f9713d 100644
--- a/accounting/grpc/service.go
+++ b/accounting/grpc/service.go
@@ -7,56 +7,40 @@ import (
 
 // SetOwnerId sets identifier of the account owner.
 func (m *BalanceRequest_Body) SetOwnerId(v *refs.OwnerID) {
-	if m != nil {
-		m.OwnerId = v
-	}
+	m.OwnerId = v
 }
 
 // SetBody sets body of the request.
 func (m *BalanceRequest) SetBody(v *BalanceRequest_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (m *BalanceRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (m *BalanceRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetBalance sets balance value of the response.
 func (m *BalanceResponse_Body) SetBalance(v *Decimal) {
-	if m != nil {
-		m.Balance = v
-	}
+	m.Balance = v
 }
 
 // SetBody sets body of the response.
 func (m *BalanceResponse) SetBody(v *BalanceResponse_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (m *BalanceResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (m *BalanceResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
diff --git a/accounting/grpc/types.go b/accounting/grpc/types.go
index 3099f690..1c1bac95 100644
--- a/accounting/grpc/types.go
+++ b/accounting/grpc/types.go
@@ -2,14 +2,10 @@ package accounting
 
 // SetValue sets value of the decimal number.
 func (m *Decimal) SetValue(v int64) {
-	if m != nil {
-		m.Value = v
-	}
+	m.Value = v
 }
 
 // SetPrecision sets precision of the decimal number.
 func (m *Decimal) SetPrecision(v uint32) {
-	if m != nil {
-		m.Precision = v
-	}
+	m.Precision = v
 }
diff --git a/acl/grpc/types.go b/acl/grpc/types.go
index cc9b48bd..032f5c91 100644
--- a/acl/grpc/types.go
+++ b/acl/grpc/types.go
@@ -6,149 +6,107 @@ import (
 
 // SetVersion sets version of EACL rules in table.
 func (m *EACLTable) SetVersion(v *refs.Version) {
-	if m != nil {
-		m.Version = v
-	}
+	m.Version = v
 }
 
 // SetContainerId sets container identifier of the eACL table.
 func (m *EACLTable) SetContainerId(v *refs.ContainerID) {
-	if m != nil {
-		m.ContainerId = v
-	}
+	m.ContainerId = v
 }
 
 // SetRecords sets record list of the eACL table.
 func (m *EACLTable) SetRecords(v []*EACLRecord) {
-	if m != nil {
-		m.Records = v
-	}
+	m.Records = v
 }
 
 // SetOperation sets operation of the eACL record.
 func (m *EACLRecord) SetOperation(v Operation) {
-	if m != nil {
-		m.Operation = v
-	}
+	m.Operation = v
 }
 
 // SetAction sets action of the eACL record.
 func (m *EACLRecord) SetAction(v Action) {
-	if m != nil {
-		m.Action = v
-	}
+	m.Action = v
 }
 
 // SetFilters sets filter list of the eACL record.
 func (m *EACLRecord) SetFilters(v []*EACLRecord_Filter) {
-	if m != nil {
-		m.Filters = v
-	}
+	m.Filters = v
 }
 
 // SetTargets sets target list of the eACL record.
 func (m *EACLRecord) SetTargets(v []*EACLRecord_Target) {
-	if m != nil {
-		m.Targets = v
-	}
+	m.Targets = v
 }
 
 // SetHeader sets header type of the eACL filter.
 func (m *EACLRecord_Filter) SetHeader(v HeaderType) {
-	if m != nil {
-		m.HeaderType = v
-	}
+	m.HeaderType = v
 }
 
 // SetMatchType sets match type of the eACL filter.
 func (m *EACLRecord_Filter) SetMatchType(v MatchType) {
-	if m != nil {
-		m.MatchType = v
-	}
+	m.MatchType = v
 }
 
 // SetKey sets key of the eACL filter.
 func (m *EACLRecord_Filter) SetKey(v string) {
-	if m != nil {
-		m.Key = v
-	}
+	m.Key = v
 }
 
 // SetValue sets value of the eACL filter.
 func (m *EACLRecord_Filter) SetValue(v string) {
-	if m != nil {
-		m.Value = v
-	}
+	m.Value = v
 }
 
 // SetRole sets target group of the eACL target.
 func (m *EACLRecord_Target) SetRole(v Role) {
-	if m != nil {
-		m.Role = v
-	}
+	m.Role = v
 }
 
 // SetKeys of the eACL target.
 func (m *EACLRecord_Target) SetKeys(v [][]byte) {
-	if m != nil {
-		m.Keys = v
-	}
+	m.Keys = v
 }
 
 // SetEaclTable sets eACL table of the bearer token.
 func (m *BearerToken_Body) SetEaclTable(v *EACLTable) {
-	if m != nil {
-		m.EaclTable = v
-	}
+	m.EaclTable = v
 }
 
 // SetOwnerId sets identifier of the bearer token owner.
 func (m *BearerToken_Body) SetOwnerId(v *refs.OwnerID) {
-	if m != nil {
-		m.OwnerId = v
-	}
+	m.OwnerId = v
 }
 
 // SetLifetime sets lifetime of the bearer token.
 func (m *BearerToken_Body) SetLifetime(v *BearerToken_Body_TokenLifetime) {
-	if m != nil {
-		m.Lifetime = v
-	}
+	m.Lifetime = v
 }
 
 // SetBody sets bearer token body.
 func (m *BearerToken) SetBody(v *BearerToken_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetSignature sets bearer token signature.
 func (m *BearerToken) SetSignature(v *refs.Signature) {
-	if m != nil {
-		m.Signature = v
-	}
+	m.Signature = v
 }
 
 // SetExp sets epoch number of the token expiration.
 func (m *BearerToken_Body_TokenLifetime) SetExp(v uint64) {
-	if m != nil {
-		m.Exp = v
-	}
+	m.Exp = v
 }
 
 // SetNbf sets starting epoch number of the token.
 func (m *BearerToken_Body_TokenLifetime) SetNbf(v uint64) {
-	if m != nil {
-		m.Nbf = v
-	}
+	m.Nbf = v
 }
 
 // SetIat sets the number of the epoch in which the token was issued.
 func (m *BearerToken_Body_TokenLifetime) SetIat(v uint64) {
-	if m != nil {
-		m.Iat = v
-	}
+	m.Iat = v
 }
 
 // FromString parses Action from a string representation,
diff --git a/acl/types.go b/acl/types.go
index 70994b4d..23c994cb 100644
--- a/acl/types.go
+++ b/acl/types.go
@@ -121,9 +121,7 @@ func (f *HeaderFilter) GetHeaderType() HeaderType {
 }
 
 func (f *HeaderFilter) SetHeaderType(v HeaderType) {
-	if f != nil {
-		f.hdrType = v
-	}
+	f.hdrType = v
 }
 
 func (f *HeaderFilter) GetMatchType() MatchType {
@@ -135,9 +133,7 @@ func (f *HeaderFilter) GetMatchType() MatchType {
 }
 
 func (f *HeaderFilter) SetMatchType(v MatchType) {
-	if f != nil {
-		f.matchType = v
-	}
+	f.matchType = v
 }
 
 func (f *HeaderFilter) GetKey() string {
@@ -149,9 +145,7 @@ func (f *HeaderFilter) GetKey() string {
 }
 
 func (f *HeaderFilter) SetKey(v string) {
-	if f != nil {
-		f.key = v
-	}
+	f.key = v
 }
 
 func (f *HeaderFilter) GetValue() string {
@@ -163,9 +157,7 @@ func (f *HeaderFilter) GetValue() string {
 }
 
 func (f *HeaderFilter) SetValue(v string) {
-	if f != nil {
-		f.value = v
-	}
+	f.value = v
 }
 
 func (t *Target) GetRole() Role {
@@ -177,9 +169,7 @@ func (t *Target) GetRole() Role {
 }
 
 func (t *Target) SetRole(v Role) {
-	if t != nil {
-		t.role = v
-	}
+	t.role = v
 }
 
 func (t *Target) GetKeys() [][]byte {
@@ -191,9 +181,7 @@ func (t *Target) GetKeys() [][]byte {
 }
 
 func (t *Target) SetKeys(v [][]byte) {
-	if t != nil {
-		t.keys = v
-	}
+	t.keys = v
 }
 
 func (r *Record) GetOperation() Operation {
@@ -205,9 +193,7 @@ func (r *Record) GetOperation() Operation {
 }
 
 func (r *Record) SetOperation(v Operation) {
-	if r != nil {
-		r.op = v
-	}
+	r.op = v
 }
 
 func (r *Record) GetAction() Action {
@@ -219,9 +205,7 @@ func (r *Record) GetAction() Action {
 }
 
 func (r *Record) SetAction(v Action) {
-	if r != nil {
-		r.action = v
-	}
+	r.action = v
 }
 
 func (r *Record) GetFilters() []HeaderFilter {
@@ -233,9 +217,7 @@ func (r *Record) GetFilters() []HeaderFilter {
 }
 
 func (r *Record) SetFilters(v []HeaderFilter) {
-	if r != nil {
-		r.filters = v
-	}
+	r.filters = v
 }
 
 func (r *Record) GetTargets() []Target {
@@ -247,9 +229,7 @@ func (r *Record) GetTargets() []Target {
 }
 
 func (r *Record) SetTargets(v []Target) {
-	if r != nil {
-		r.targets = v
-	}
+	r.targets = v
 }
 
 func (t *Table) GetVersion() *refs.Version {
@@ -261,9 +241,7 @@ func (t *Table) GetVersion() *refs.Version {
 }
 
 func (t *Table) SetVersion(v *refs.Version) {
-	if t != nil {
-		t.version = v
-	}
+	t.version = v
 }
 
 func (t *Table) GetContainerID() *refs.ContainerID {
@@ -275,9 +253,7 @@ func (t *Table) GetContainerID() *refs.ContainerID {
 }
 
 func (t *Table) SetContainerID(v *refs.ContainerID) {
-	if t != nil {
-		t.cid = v
-	}
+	t.cid = v
 }
 
 func (t *Table) GetRecords() []Record {
@@ -289,9 +265,7 @@ func (t *Table) GetRecords() []Record {
 }
 
 func (t *Table) SetRecords(v []Record) {
-	if t != nil {
-		t.records = v
-	}
+	t.records = v
 }
 
 func (l *TokenLifetime) GetExp() uint64 {
@@ -303,9 +277,7 @@ func (l *TokenLifetime) GetExp() uint64 {
 }
 
 func (l *TokenLifetime) SetExp(v uint64) {
-	if l != nil {
-		l.exp = v
-	}
+	l.exp = v
 }
 
 func (l *TokenLifetime) GetNbf() uint64 {
@@ -317,9 +289,7 @@ func (l *TokenLifetime) GetNbf() uint64 {
 }
 
 func (l *TokenLifetime) SetNbf(v uint64) {
-	if l != nil {
-		l.nbf = v
-	}
+	l.nbf = v
 }
 
 func (l *TokenLifetime) GetIat() uint64 {
@@ -331,9 +301,7 @@ func (l *TokenLifetime) GetIat() uint64 {
 }
 
 func (l *TokenLifetime) SetIat(v uint64) {
-	if l != nil {
-		l.iat = v
-	}
+	l.iat = v
 }
 
 func (bt *BearerTokenBody) GetEACL() *Table {
@@ -345,9 +313,7 @@ func (bt *BearerTokenBody) GetEACL() *Table {
 }
 
 func (bt *BearerTokenBody) SetEACL(v *Table) {
-	if bt != nil {
-		bt.eacl = v
-	}
+	bt.eacl = v
 }
 
 func (bt *BearerTokenBody) GetOwnerID() *refs.OwnerID {
@@ -359,9 +325,7 @@ func (bt *BearerTokenBody) GetOwnerID() *refs.OwnerID {
 }
 
 func (bt *BearerTokenBody) SetOwnerID(v *refs.OwnerID) {
-	if bt != nil {
-		bt.ownerID = v
-	}
+	bt.ownerID = v
 }
 
 func (bt *BearerTokenBody) GetLifetime() *TokenLifetime {
@@ -373,9 +337,7 @@ func (bt *BearerTokenBody) GetLifetime() *TokenLifetime {
 }
 
 func (bt *BearerTokenBody) SetLifetime(v *TokenLifetime) {
-	if bt != nil {
-		bt.lifetime = v
-	}
+	bt.lifetime = v
 }
 
 func (bt *BearerToken) GetBody() *BearerTokenBody {
@@ -387,9 +349,7 @@ func (bt *BearerToken) GetBody() *BearerTokenBody {
 }
 
 func (bt *BearerToken) SetBody(v *BearerTokenBody) {
-	if bt != nil {
-		bt.body = v
-	}
+	bt.body = v
 }
 
 func (bt *BearerToken) GetSignature() *refs.Signature {
@@ -401,7 +361,5 @@ func (bt *BearerToken) GetSignature() *refs.Signature {
 }
 
 func (bt *BearerToken) SetSignature(v *refs.Signature) {
-	if bt != nil {
-		bt.sig = v
-	}
+	bt.sig = v
 }
diff --git a/audit/grpc/types.go b/audit/grpc/types.go
index d8dd0d12..36a2267c 100644
--- a/audit/grpc/types.go
+++ b/audit/grpc/types.go
@@ -6,98 +6,70 @@ import (
 
 // SetVersion is a Version field setter.
 func (x *DataAuditResult) SetVersion(v *refs.Version) {
-	if x != nil {
-		x.Version = v
-	}
+	x.Version = v
 }
 
 // SetAuditEpoch is an AuditEpoch field setter.
 func (x *DataAuditResult) SetAuditEpoch(v uint64) {
-	if x != nil {
-		x.AuditEpoch = v
-	}
+	x.AuditEpoch = v
 }
 
 // SetContainerId is a ContainerId field setter.
 func (x *DataAuditResult) SetContainerId(v *refs.ContainerID) {
-	if x != nil {
-		x.ContainerId = v
-	}
+	x.ContainerId = v
 }
 
 // SetPublicKey is a PublicKey field setter.
 func (x *DataAuditResult) SetPublicKey(v []byte) {
-	if x != nil {
-		x.PublicKey = v
-	}
+	x.PublicKey = v
 }
 
 // SetComplete is a Complete field setter.
 func (x *DataAuditResult) SetComplete(v bool) {
-	if x != nil {
-		x.Complete = v
-	}
+	x.Complete = v
 }
 
 // SetRequests is a Requests field setter.
 func (x *DataAuditResult) SetRequests(v uint32) {
-	if x != nil {
-		x.Requests = v
-	}
+	x.Requests = v
 }
 
 // SetRetries is a Retries field setter.
 func (x *DataAuditResult) SetRetries(v uint32) {
-	if x != nil {
-		x.Retries = v
-	}
+	x.Retries = v
 }
 
 // SetPassSg is a PassSg field setter.
 func (x *DataAuditResult) SetPassSg(v []*refs.ObjectID) {
-	if x != nil {
-		x.PassSg = v
-	}
+	x.PassSg = v
 }
 
 // SetFailSg is a FailSg field setter.
 func (x *DataAuditResult) SetFailSg(v []*refs.ObjectID) {
-	if x != nil {
-		x.FailSg = v
-	}
+	x.FailSg = v
 }
 
 // SetHit is a Hit field setter.
 func (x *DataAuditResult) SetHit(v uint32) {
-	if x != nil {
-		x.Hit = v
-	}
+	x.Hit = v
 }
 
 // SetMiss is a Miss field setter.
 func (x *DataAuditResult) SetMiss(v uint32) {
-	if x != nil {
-		x.Miss = v
-	}
+	x.Miss = v
 }
 
 // SetFail is a Fail field setter.
 func (x *DataAuditResult) SetFail(v uint32) {
-	if x != nil {
-		x.Fail = v
-	}
+	x.Fail = v
 }
 
 // SetPassNodes is a PassNodes field setter.
 func (x *DataAuditResult) SetPassNodes(v [][]byte) {
-	if x != nil {
-		x.PassNodes = v
-	}
+	x.PassNodes = v
 }
 
 // SetFailNodes is a FailNodes field setter.
 func (x *DataAuditResult) SetFailNodes(v [][]byte) {
-	if x != nil {
-		x.FailNodes = v
-	}
+	x.FailNodes = v
 }
diff --git a/audit/types.go b/audit/types.go
index 8245b2a7..354ef477 100644
--- a/audit/types.go
+++ b/audit/types.go
@@ -37,9 +37,7 @@ func (a *DataAuditResult) GetVersion() *refs.Version {
 
 // SetVersion sets version of Data Audit structure.
 func (a *DataAuditResult) SetVersion(v *refs.Version) {
-	if a != nil {
-		a.version = v
-	}
+	a.version = v
 }
 
 // GetAuditEpoch returns epoch number when the Data Audit was conducted.
@@ -53,9 +51,7 @@ func (a *DataAuditResult) GetAuditEpoch() uint64 {
 
 // SetAuditEpoch sets epoch number when the Data Audit was conducted.
 func (a *DataAuditResult) SetAuditEpoch(v uint64) {
-	if a != nil {
-		a.auditEpoch = v
-	}
+	a.auditEpoch = v
 }
 
 // GetContainerID returns container under audit.
@@ -69,9 +65,7 @@ func (a *DataAuditResult) GetContainerID() *refs.ContainerID {
 
 // SetContainerID sets container under audit.
 func (a *DataAuditResult) SetContainerID(v *refs.ContainerID) {
-	if a != nil {
-		a.cid = v
-	}
+	a.cid = v
 }
 
 // GetPublicKey returns public key of the auditing InnerRing node in a binary format.
@@ -85,9 +79,7 @@ func (a *DataAuditResult) GetPublicKey() []byte {
 
 // SetPublicKey sets public key of the auditing InnerRing node in a binary format.
 func (a *DataAuditResult) SetPublicKey(v []byte) {
-	if a != nil {
-		a.pubKey = v
-	}
+	a.pubKey = v
 }
 
 // GetPassSG returns list of Storage Groups that passed audit PoR stage.
@@ -101,9 +93,7 @@ func (a *DataAuditResult) GetPassSG() []refs.ObjectID {
 
 // SetPassSG sets list of Storage Groups that passed audit PoR stage.
 func (a *DataAuditResult) SetPassSG(v []refs.ObjectID) {
-	if a != nil {
-		a.passSG = v
-	}
+	a.passSG = v
 }
 
 // GetFailSG returns list of Storage Groups that failed audit PoR stage.
@@ -117,9 +107,7 @@ func (a *DataAuditResult) GetFailSG() []refs.ObjectID {
 
 // SetFailSG sets list of Storage Groups that failed audit PoR stage.
 func (a *DataAuditResult) SetFailSG(v []refs.ObjectID) {
-	if a != nil {
-		a.failSG = v
-	}
+	a.failSG = v
 }
 
 // GetRequests returns number of requests made by PoR audit check to get
@@ -135,9 +123,7 @@ func (a *DataAuditResult) GetRequests() uint32 {
 // SetRequests sets number of requests made by PoR audit check to get
 // all headers of the objects inside storage groups.
 func (a *DataAuditResult) SetRequests(v uint32) {
-	if a != nil {
-		a.requests = v
-	}
+	a.requests = v
 }
 
 // GetRetries returns number of retries made by PoR audit check to get
@@ -153,9 +139,7 @@ func (a *DataAuditResult) GetRetries() uint32 {
 // SetRetries sets number of retries made by PoR audit check to get
 // all headers of the objects inside storage groups.
 func (a *DataAuditResult) SetRetries(v uint32) {
-	if a != nil {
-		a.retries = v
-	}
+	a.retries = v
 }
 
 // GetHit returns number of sampled objects under audit placed
@@ -173,9 +157,7 @@ func (a *DataAuditResult) GetHit() uint32 {
 // in an optimal way according to the containers placement policy
 // when checking PoP.
 func (a *DataAuditResult) SetHit(v uint32) {
-	if a != nil {
-		a.hit = v
-	}
+	a.hit = v
 }
 
 // GetMiss returns number of sampled objects under audit placed
@@ -193,9 +175,7 @@ func (a *DataAuditResult) GetMiss() uint32 {
 // in suboptimal way according to the containers placement policy,
 // but still at a satisfactory level when checking PoP.
 func (a *DataAuditResult) SetMiss(v uint32) {
-	if a != nil {
-		a.miss = v
-	}
+	a.miss = v
 }
 
 // GetFail returns number of sampled objects under audit stored
@@ -213,9 +193,7 @@ func (a *DataAuditResult) GetFail() uint32 {
 // in a way not confirming placement policy or not found at all
 // when checking PoP.
 func (a *DataAuditResult) SetFail(v uint32) {
-	if a != nil {
-		a.fail = v
-	}
+	a.fail = v
 }
 
 // GetPassNodes returns list of storage node public keys that
@@ -231,9 +209,7 @@ func (a *DataAuditResult) GetPassNodes() [][]byte {
 // SetPassNodes sets list of storage node public keys that
 // passed at least one PDP.
 func (a *DataAuditResult) SetPassNodes(v [][]byte) {
-	if a != nil {
-		a.passNodes = v
-	}
+	a.passNodes = v
 }
 
 // GetFailNodes returns list of storage node public keys that
@@ -249,9 +225,7 @@ func (a *DataAuditResult) GetFailNodes() [][]byte {
 // SetFailNodes sets list of storage node public keys that
 // failed at least one PDP.
 func (a *DataAuditResult) SetFailNodes(v [][]byte) {
-	if a != nil {
-		a.failNodes = v
-	}
+	a.failNodes = v
 }
 
 // GetComplete returns boolean completion statement of audit result.
@@ -265,7 +239,5 @@ func (a *DataAuditResult) GetComplete() bool {
 
 // SetComplete sets boolean completion statement of audit result.
 func (a *DataAuditResult) SetComplete(v bool) {
-	if a != nil {
-		a.complete = v
-	}
+	a.complete = v
 }
diff --git a/container/grpc/service.go b/container/grpc/service.go
index 09743dcc..e8f8e721 100644
--- a/container/grpc/service.go
+++ b/container/grpc/service.go
@@ -8,121 +8,87 @@ import (
 
 // SetContainer sets container of the request.
 func (m *PutRequest_Body) SetContainer(v *Container) {
-	if m != nil {
-		m.Container = v
-	}
+	m.Container = v
 }
 
 // SetSignature sets signature of the container structure.
 func (m *PutRequest_Body) SetSignature(v *refs.SignatureRFC6979) {
-	if m != nil {
-		m.Signature = v
-	}
+	m.Signature = v
 }
 
 // SetBody sets body of the request.
 func (m *PutRequest) SetBody(v *PutRequest_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (m *PutRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (m *PutRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetContainerId sets identifier of the container.
 func (m *PutResponse_Body) SetContainerId(v *refs.ContainerID) {
-	if m != nil {
-		m.ContainerId = v
-	}
+	m.ContainerId = v
 }
 
 // SetBody sets body of the response.
 func (m *PutResponse) SetBody(v *PutResponse_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (m *PutResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (m *PutResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetContainerId sets identifier of the container.
 func (m *DeleteRequest_Body) SetContainerId(v *refs.ContainerID) {
-	if m != nil {
-		m.ContainerId = v
-	}
+	m.ContainerId = v
 }
 
 // SetSignature sets signature of the container identifier.
 func (m *DeleteRequest_Body) SetSignature(v *refs.SignatureRFC6979) {
-	if m != nil {
-		m.Signature = v
-	}
+	m.Signature = v
 }
 
 // SetBody sets body of the request.
 func (m *DeleteRequest) SetBody(v *DeleteRequest_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (m *DeleteRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (m *DeleteRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetBody sets body of the response.
 func (m *DeleteResponse) SetBody(v *DeleteResponse_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (m *DeleteResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (m *DeleteResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetContainerId sets identifier of the container.
@@ -132,317 +98,227 @@ func (m *GetRequest_Body) SetContainerId(v *refs.ContainerID) {
 
 // SetBody sets body of the request.
 func (m *GetRequest) SetBody(v *GetRequest_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (m *GetRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (m *GetRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetContainer sets the container structure.
 func (m *GetResponse_Body) SetContainer(v *Container) {
-	if m != nil {
-		m.Container = v
-	}
+	m.Container = v
 }
 
 // SetSessionToken sets token of the session within which requested
 // container was created.
 func (m *GetResponse_Body) SetSessionToken(v *session.SessionToken) {
-	if m != nil {
-		m.SessionToken = v
-	}
+	m.SessionToken = v
 }
 
 // SetSignature sets signature of the container structure.
 func (m *GetResponse_Body) SetSignature(v *refs.SignatureRFC6979) {
-	if m != nil {
-		m.Signature = v
-	}
+	m.Signature = v
 }
 
 // SetBody sets body of the response.
 func (m *GetResponse) SetBody(v *GetResponse_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (m *GetResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (m *GetResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetOwnerId sets identifier of the container owner.
 func (m *ListRequest_Body) SetOwnerId(v *refs.OwnerID) {
-	if m != nil {
-		m.OwnerId = v
-	}
+	m.OwnerId = v
 }
 
 // SetBody sets body of the request.
 func (m *ListRequest) SetBody(v *ListRequest_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (m *ListRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (m *ListRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetContainerIds sets list of the container identifiers.
 func (m *ListResponse_Body) SetContainerIds(v []*refs.ContainerID) {
-	if m != nil {
-		m.ContainerIds = v
-	}
+	m.ContainerIds = v
 }
 
 // SetBody sets body of the response.
 func (m *ListResponse) SetBody(v *ListResponse_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (m *ListResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (m *ListResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetEacl sets eACL table structure.
 func (m *SetExtendedACLRequest_Body) SetEacl(v *acl.EACLTable) {
-	if m != nil {
-		m.Eacl = v
-	}
+	m.Eacl = v
 }
 
 // SetSignature sets signature of the eACL table structure.
 func (m *SetExtendedACLRequest_Body) SetSignature(v *refs.SignatureRFC6979) {
-	if m != nil {
-		m.Signature = v
-	}
+	m.Signature = v
 }
 
 // SetBody sets body of the request.
 func (m *SetExtendedACLRequest) SetBody(v *SetExtendedACLRequest_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (m *SetExtendedACLRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (m *SetExtendedACLRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetBody sets body of the response.
 func (m *SetExtendedACLResponse) SetBody(v *SetExtendedACLResponse_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (m *SetExtendedACLResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (m *SetExtendedACLResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetContainerId sets identifier of the container.
 func (m *GetExtendedACLRequest_Body) SetContainerId(v *refs.ContainerID) {
-	if m != nil {
-		m.ContainerId = v
-	}
+	m.ContainerId = v
 }
 
 // SetBody sets body of the request.
 func (m *GetExtendedACLRequest) SetBody(v *GetExtendedACLRequest_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (m *GetExtendedACLRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (m *GetExtendedACLRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetEacl sets eACL table structure.
 func (m *GetExtendedACLResponse_Body) SetEacl(v *acl.EACLTable) {
-	if m != nil {
-		m.Eacl = v
-	}
+	m.Eacl = v
 }
 
 // SetSignature sets signature of the eACL table structure.
 func (m *GetExtendedACLResponse_Body) SetSignature(v *refs.SignatureRFC6979) {
-	if m != nil {
-		m.Signature = v
-	}
+	m.Signature = v
 }
 
 // SetSessionToken sets token of the session within which requested
 // eACl table was set.
 func (m *GetExtendedACLResponse_Body) SetSessionToken(v *session.SessionToken) {
-	if m != nil {
-		m.SessionToken = v
-	}
+	m.SessionToken = v
 }
 
 // SetBody sets body of the response.
 func (m *GetExtendedACLResponse) SetBody(v *GetExtendedACLResponse_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (m *GetExtendedACLResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (m *GetExtendedACLResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetEpoch sets epoch of the size estimation.
 func (m *AnnounceUsedSpaceRequest_Body_Announcement) SetEpoch(v uint64) {
-	if m != nil {
-		m.Epoch = v
-	}
+	m.Epoch = v
 }
 
 // SetContainerId sets identifier of the container.
 func (m *AnnounceUsedSpaceRequest_Body_Announcement) SetContainerId(v *refs.ContainerID) {
-	if m != nil {
-		m.ContainerId = v
-	}
+	m.ContainerId = v
 }
 
 // SetUsedSpace sets used space value of the container.
 func (m *AnnounceUsedSpaceRequest_Body_Announcement) SetUsedSpace(v uint64) {
-	if m != nil {
-		m.UsedSpace = v
-	}
+	m.UsedSpace = v
 }
 
 // SetAnnouncements sets list of announcement for shared containers between nodes.
 func (m *AnnounceUsedSpaceRequest_Body) SetAnnouncements(v []*AnnounceUsedSpaceRequest_Body_Announcement) {
-	if m != nil {
-		m.Announcements = v
-	}
+	m.Announcements = v
 }
 
 // SetBody sets body of the request.
 func (m *AnnounceUsedSpaceRequest) SetBody(v *AnnounceUsedSpaceRequest_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (m *AnnounceUsedSpaceRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (m *AnnounceUsedSpaceRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetBody sets body of the response.
 func (m *AnnounceUsedSpaceResponse) SetBody(v *AnnounceUsedSpaceResponse_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (m *AnnounceUsedSpaceResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (m *AnnounceUsedSpaceResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
diff --git a/container/grpc/types.go b/container/grpc/types.go
index 9fed6b2b..2bb9b8b4 100644
--- a/container/grpc/types.go
+++ b/container/grpc/types.go
@@ -7,56 +7,40 @@ import (
 
 // SetKey sets key to the container attribute.
 func (m *Container_Attribute) SetKey(v string) {
-	if m != nil {
-		m.Key = v
-	}
+	m.Key = v
 }
 
 // SetValue sets value of the container attribute.
 func (m *Container_Attribute) SetValue(v string) {
-	if m != nil {
-		m.Value = v
-	}
+	m.Value = v
 }
 
 // SetOwnerId sets identifier of the container owner,
 func (m *Container) SetOwnerId(v *refs.OwnerID) {
-	if m != nil {
-		m.OwnerId = v
-	}
+	m.OwnerId = v
 }
 
 // SetNonce sets nonce of the container structure.
 func (m *Container) SetNonce(v []byte) {
-	if m != nil {
-		m.Nonce = v
-	}
+	m.Nonce = v
 }
 
 // SetBasicAcl sets basic ACL of the container.
 func (m *Container) SetBasicAcl(v uint32) {
-	if m != nil {
-		m.BasicAcl = v
-	}
+	m.BasicAcl = v
 }
 
 // SetAttributes sets list of the container attributes.
 func (m *Container) SetAttributes(v []*Container_Attribute) {
-	if m != nil {
-		m.Attributes = v
-	}
+	m.Attributes = v
 }
 
 // SetPlacementPolicy sets placement policy of the container.
 func (m *Container) SetPlacementPolicy(v *netmap.PlacementPolicy) {
-	if m != nil {
-		m.PlacementPolicy = v
-	}
+	m.PlacementPolicy = v
 }
 
 // SetVersion sets version of the container.
 func (m *Container) SetVersion(v *refs.Version) {
-	if m != nil {
-		m.Version = v
-	}
+	m.Version = v
 }
diff --git a/container/types.go b/container/types.go
index 25755a8a..215f830d 100644
--- a/container/types.go
+++ b/container/types.go
@@ -189,9 +189,7 @@ func (a *Attribute) GetKey() string {
 }
 
 func (a *Attribute) SetKey(v string) {
-	if a != nil {
-		a.key = v
-	}
+	a.key = v
 }
 
 func (a *Attribute) GetValue() string {
@@ -203,9 +201,7 @@ func (a *Attribute) GetValue() string {
 }
 
 func (a *Attribute) SetValue(v string) {
-	if a != nil {
-		a.val = v
-	}
+	a.val = v
 }
 
 func (c *Container) GetVersion() *refs.Version {
@@ -217,9 +213,7 @@ func (c *Container) GetVersion() *refs.Version {
 }
 
 func (c *Container) SetVersion(v *refs.Version) {
-	if c != nil {
-		c.version = v
-	}
+	c.version = v
 }
 
 func (c *Container) GetOwnerID() *refs.OwnerID {
@@ -231,9 +225,7 @@ func (c *Container) GetOwnerID() *refs.OwnerID {
 }
 
 func (c *Container) SetOwnerID(v *refs.OwnerID) {
-	if c != nil {
-		c.ownerID = v
-	}
+	c.ownerID = v
 }
 
 func (c *Container) GetNonce() []byte {
@@ -245,9 +237,7 @@ func (c *Container) GetNonce() []byte {
 }
 
 func (c *Container) SetNonce(v []byte) {
-	if c != nil {
-		c.nonce = v
-	}
+	c.nonce = v
 }
 
 func (c *Container) GetBasicACL() uint32 {
@@ -259,9 +249,7 @@ func (c *Container) GetBasicACL() uint32 {
 }
 
 func (c *Container) SetBasicACL(v uint32) {
-	if c != nil {
-		c.basicACL = v
-	}
+	c.basicACL = v
 }
 
 func (c *Container) GetAttributes() []Attribute {
@@ -273,9 +261,7 @@ func (c *Container) GetAttributes() []Attribute {
 }
 
 func (c *Container) SetAttributes(v []Attribute) {
-	if c != nil {
-		c.attr = v
-	}
+	c.attr = v
 }
 
 func (c *Container) GetPlacementPolicy() *netmap.PlacementPolicy {
@@ -287,9 +273,7 @@ func (c *Container) GetPlacementPolicy() *netmap.PlacementPolicy {
 }
 
 func (c *Container) SetPlacementPolicy(v *netmap.PlacementPolicy) {
-	if c != nil {
-		c.policy = v
-	}
+	c.policy = v
 }
 
 func (r *PutRequestBody) GetContainer() *Container {
@@ -301,9 +285,7 @@ func (r *PutRequestBody) GetContainer() *Container {
 }
 
 func (r *PutRequestBody) SetContainer(v *Container) {
-	if r != nil {
-		r.cnr = v
-	}
+	r.cnr = v
 }
 
 func (r *PutRequestBody) GetSignature() *refs.Signature {
@@ -315,11 +297,9 @@ func (r *PutRequestBody) GetSignature() *refs.Signature {
 }
 
 func (r *PutRequestBody) SetSignature(v *refs.Signature) {
-	if r != nil {
-		// TODO: (neofs-api-go#381) avoid this hack (e.g. create refs.SignatureRFC6979 type)
-		v.SetScheme(0)
-		r.sig = v
-	}
+	// TODO: (neofs-api-go#381) avoid this hack (e.g. create refs.SignatureRFC6979 type)
+	v.SetScheme(0)
+	r.sig = v
 }
 
 func (r *PutRequest) GetBody() *PutRequestBody {
@@ -331,9 +311,7 @@ func (r *PutRequest) GetBody() *PutRequestBody {
 }
 
 func (r *PutRequest) SetBody(v *PutRequestBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *PutResponseBody) GetContainerID() *refs.ContainerID {
@@ -345,9 +323,7 @@ func (r *PutResponseBody) GetContainerID() *refs.ContainerID {
 }
 
 func (r *PutResponseBody) SetContainerID(v *refs.ContainerID) {
-	if r != nil {
-		r.cid = v
-	}
+	r.cid = v
 }
 
 func (r *PutResponse) GetBody() *PutResponseBody {
@@ -359,9 +335,7 @@ func (r *PutResponse) GetBody() *PutResponseBody {
 }
 
 func (r *PutResponse) SetBody(v *PutResponseBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *GetRequestBody) GetContainerID() *refs.ContainerID {
@@ -373,9 +347,7 @@ func (r *GetRequestBody) GetContainerID() *refs.ContainerID {
 }
 
 func (r *GetRequestBody) SetContainerID(v *refs.ContainerID) {
-	if r != nil {
-		r.cid = v
-	}
+	r.cid = v
 }
 
 func (r *GetRequest) GetBody() *GetRequestBody {
@@ -387,9 +359,7 @@ func (r *GetRequest) GetBody() *GetRequestBody {
 }
 
 func (r *GetRequest) SetBody(v *GetRequestBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *GetResponseBody) GetContainer() *Container {
@@ -401,9 +371,7 @@ func (r *GetResponseBody) GetContainer() *Container {
 }
 
 func (r *GetResponseBody) SetContainer(v *Container) {
-	if r != nil {
-		r.cnr = v
-	}
+	r.cnr = v
 }
 
 // GetSessionToken returns token of the session within which requested
@@ -419,9 +387,7 @@ func (r *GetResponseBody) GetSessionToken() *session.Token {
 // SetSessionToken sets token of the session within which requested
 // container was created.
 func (r *GetResponseBody) SetSessionToken(v *session.Token) {
-	if r != nil {
-		r.token = v
-	}
+	r.token = v
 }
 
 // GetSignature returns signature of the requested container.
@@ -435,11 +401,9 @@ func (r *GetResponseBody) GetSignature() *refs.Signature {
 
 // SetSignature sets signature of the requested container.
 func (r *GetResponseBody) SetSignature(v *refs.Signature) {
-	if r != nil {
-		// TODO: (neofs-api-go#381) avoid this hack (e.g. create refs.SignatureRFC6979 type)
-		v.SetScheme(0)
-		r.sig = v
-	}
+	// TODO: (neofs-api-go#381) avoid this hack (e.g. create refs.SignatureRFC6979 type)
+	v.SetScheme(0)
+	r.sig = v
 }
 
 func (r *GetResponse) GetBody() *GetResponseBody {
@@ -451,9 +415,7 @@ func (r *GetResponse) GetBody() *GetResponseBody {
 }
 
 func (r *GetResponse) SetBody(v *GetResponseBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *DeleteRequestBody) GetContainerID() *refs.ContainerID {
@@ -465,9 +427,7 @@ func (r *DeleteRequestBody) GetContainerID() *refs.ContainerID {
 }
 
 func (r *DeleteRequestBody) SetContainerID(v *refs.ContainerID) {
-	if r != nil {
-		r.cid = v
-	}
+	r.cid = v
 }
 
 func (r *DeleteRequestBody) GetSignature() *refs.Signature {
@@ -479,11 +439,9 @@ func (r *DeleteRequestBody) GetSignature() *refs.Signature {
 }
 
 func (r *DeleteRequestBody) SetSignature(v *refs.Signature) {
-	if r != nil {
-		// TODO: (neofs-api-go#381) avoid this hack (e.g. create refs.SignatureRFC6979 type)
-		v.SetScheme(0)
-		r.sig = v
-	}
+	// TODO: (neofs-api-go#381) avoid this hack (e.g. create refs.SignatureRFC6979 type)
+	v.SetScheme(0)
+	r.sig = v
 }
 
 func (r *DeleteRequest) GetBody() *DeleteRequestBody {
@@ -495,9 +453,7 @@ func (r *DeleteRequest) GetBody() *DeleteRequestBody {
 }
 
 func (r *DeleteRequest) SetBody(v *DeleteRequestBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *DeleteResponse) GetBody() *DeleteResponseBody {
@@ -509,9 +465,7 @@ func (r *DeleteResponse) GetBody() *DeleteResponseBody {
 }
 
 func (r *DeleteResponse) SetBody(v *DeleteResponseBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *ListRequestBody) GetOwnerID() *refs.OwnerID {
@@ -523,9 +477,7 @@ func (r *ListRequestBody) GetOwnerID() *refs.OwnerID {
 }
 
 func (r *ListRequestBody) SetOwnerID(v *refs.OwnerID) {
-	if r != nil {
-		r.ownerID = v
-	}
+	r.ownerID = v
 }
 
 func (r *ListRequest) GetBody() *ListRequestBody {
@@ -537,9 +489,7 @@ func (r *ListRequest) GetBody() *ListRequestBody {
 }
 
 func (r *ListRequest) SetBody(v *ListRequestBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *ListResponseBody) GetContainerIDs() []refs.ContainerID {
@@ -551,9 +501,7 @@ func (r *ListResponseBody) GetContainerIDs() []refs.ContainerID {
 }
 
 func (r *ListResponseBody) SetContainerIDs(v []refs.ContainerID) {
-	if r != nil {
-		r.cidList = v
-	}
+	r.cidList = v
 }
 
 func (r *ListResponse) GetBody() *ListResponseBody {
@@ -565,9 +513,7 @@ func (r *ListResponse) GetBody() *ListResponseBody {
 }
 
 func (r *ListResponse) SetBody(v *ListResponseBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *SetExtendedACLRequestBody) GetEACL() *acl.Table {
@@ -579,9 +525,7 @@ func (r *SetExtendedACLRequestBody) GetEACL() *acl.Table {
 }
 
 func (r *SetExtendedACLRequestBody) SetEACL(v *acl.Table) {
-	if r != nil {
-		r.eacl = v
-	}
+	r.eacl = v
 }
 
 func (r *SetExtendedACLRequestBody) GetSignature() *refs.Signature {
@@ -593,11 +537,9 @@ func (r *SetExtendedACLRequestBody) GetSignature() *refs.Signature {
 }
 
 func (r *SetExtendedACLRequestBody) SetSignature(v *refs.Signature) {
-	if r != nil {
-		// TODO: (neofs-api-go#381) avoid this hack (e.g. create refs.SignatureRFC6979 type)
-		v.SetScheme(0)
-		r.sig = v
-	}
+	// TODO: (neofs-api-go#381) avoid this hack (e.g. create refs.SignatureRFC6979 type)
+	v.SetScheme(0)
+	r.sig = v
 }
 
 func (r *SetExtendedACLRequest) GetBody() *SetExtendedACLRequestBody {
@@ -609,9 +551,7 @@ func (r *SetExtendedACLRequest) GetBody() *SetExtendedACLRequestBody {
 }
 
 func (r *SetExtendedACLRequest) SetBody(v *SetExtendedACLRequestBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *SetExtendedACLResponse) GetBody() *SetExtendedACLResponseBody {
@@ -623,9 +563,7 @@ func (r *SetExtendedACLResponse) GetBody() *SetExtendedACLResponseBody {
 }
 
 func (r *SetExtendedACLResponse) SetBody(v *SetExtendedACLResponseBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *GetExtendedACLRequestBody) GetContainerID() *refs.ContainerID {
@@ -637,9 +575,7 @@ func (r *GetExtendedACLRequestBody) GetContainerID() *refs.ContainerID {
 }
 
 func (r *GetExtendedACLRequestBody) SetContainerID(v *refs.ContainerID) {
-	if r != nil {
-		r.cid = v
-	}
+	r.cid = v
 }
 
 func (r *GetExtendedACLRequest) GetBody() *GetExtendedACLRequestBody {
@@ -651,9 +587,7 @@ func (r *GetExtendedACLRequest) GetBody() *GetExtendedACLRequestBody {
 }
 
 func (r *GetExtendedACLRequest) SetBody(v *GetExtendedACLRequestBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *GetExtendedACLResponseBody) GetEACL() *acl.Table {
@@ -665,9 +599,7 @@ func (r *GetExtendedACLResponseBody) GetEACL() *acl.Table {
 }
 
 func (r *GetExtendedACLResponseBody) SetEACL(v *acl.Table) {
-	if r != nil {
-		r.eacl = v
-	}
+	r.eacl = v
 }
 
 func (r *GetExtendedACLResponseBody) GetSignature() *refs.Signature {
@@ -679,11 +611,9 @@ func (r *GetExtendedACLResponseBody) GetSignature() *refs.Signature {
 }
 
 func (r *GetExtendedACLResponseBody) SetSignature(v *refs.Signature) {
-	if r != nil {
-		// TODO: (neofs-api-go#381) avoid this hack (e.g. create refs.SignatureRFC6979 type)
-		v.SetScheme(0)
-		r.sig = v
-	}
+	// TODO: (neofs-api-go#381) avoid this hack (e.g. create refs.SignatureRFC6979 type)
+	v.SetScheme(0)
+	r.sig = v
 }
 
 // GetSessionToken returns token of the session within which requested
@@ -699,9 +629,7 @@ func (r *GetExtendedACLResponseBody) GetSessionToken() *session.Token {
 // SetSessionToken sets token of the session within which requested
 // eACL table was set.
 func (r *GetExtendedACLResponseBody) SetSessionToken(v *session.Token) {
-	if r != nil {
-		r.token = v
-	}
+	r.token = v
 }
 
 func (r *GetExtendedACLResponse) GetBody() *GetExtendedACLResponseBody {
@@ -713,9 +641,7 @@ func (r *GetExtendedACLResponse) GetBody() *GetExtendedACLResponseBody {
 }
 
 func (r *GetExtendedACLResponse) SetBody(v *GetExtendedACLResponseBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (a *UsedSpaceAnnouncement) GetEpoch() uint64 {
@@ -727,9 +653,7 @@ func (a *UsedSpaceAnnouncement) GetEpoch() uint64 {
 }
 
 func (a *UsedSpaceAnnouncement) SetEpoch(v uint64) {
-	if a != nil {
-		a.epoch = v
-	}
+	a.epoch = v
 }
 
 func (a *UsedSpaceAnnouncement) GetUsedSpace() uint64 {
@@ -741,9 +665,7 @@ func (a *UsedSpaceAnnouncement) GetUsedSpace() uint64 {
 }
 
 func (a *UsedSpaceAnnouncement) SetUsedSpace(v uint64) {
-	if a != nil {
-		a.usedSpace = v
-	}
+	a.usedSpace = v
 }
 
 func (a *UsedSpaceAnnouncement) GetContainerID() *refs.ContainerID {
@@ -755,9 +677,7 @@ func (a *UsedSpaceAnnouncement) GetContainerID() *refs.ContainerID {
 }
 
 func (a *UsedSpaceAnnouncement) SetContainerID(v *refs.ContainerID) {
-	if a != nil {
-		a.cid = v
-	}
+	a.cid = v
 }
 
 func (r *AnnounceUsedSpaceRequestBody) GetAnnouncements() []UsedSpaceAnnouncement {
@@ -769,9 +689,7 @@ func (r *AnnounceUsedSpaceRequestBody) GetAnnouncements() []UsedSpaceAnnouncemen
 }
 
 func (r *AnnounceUsedSpaceRequestBody) SetAnnouncements(v []UsedSpaceAnnouncement) {
-	if r != nil {
-		r.announcements = v
-	}
+	r.announcements = v
 }
 
 func (r *AnnounceUsedSpaceRequest) GetBody() *AnnounceUsedSpaceRequestBody {
@@ -783,9 +701,7 @@ func (r *AnnounceUsedSpaceRequest) GetBody() *AnnounceUsedSpaceRequestBody {
 }
 
 func (r *AnnounceUsedSpaceRequest) SetBody(v *AnnounceUsedSpaceRequestBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *AnnounceUsedSpaceResponse) GetBody() *AnnounceUsedSpaceResponseBody {
@@ -797,7 +713,5 @@ func (r *AnnounceUsedSpaceResponse) GetBody() *AnnounceUsedSpaceResponseBody {
 }
 
 func (r *AnnounceUsedSpaceResponse) SetBody(v *AnnounceUsedSpaceResponseBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
diff --git a/netmap/grpc/service.go b/netmap/grpc/service.go
index 36ed88d0..00616314 100644
--- a/netmap/grpc/service.go
+++ b/netmap/grpc/service.go
@@ -7,105 +7,75 @@ import (
 
 // SetBody sets body of the request.
 func (m *LocalNodeInfoRequest) SetBody(v *LocalNodeInfoRequest_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (m *LocalNodeInfoRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (m *LocalNodeInfoRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetVersion sets version of response body.
 func (m *LocalNodeInfoResponse_Body) SetVersion(v *refs.Version) {
-	if m != nil {
-		m.Version = v
-	}
+	m.Version = v
 }
 
 // SetNodeInfo sets node info of response body.
 func (m *LocalNodeInfoResponse_Body) SetNodeInfo(v *NodeInfo) {
-	if m != nil {
-		m.NodeInfo = v
-	}
+	m.NodeInfo = v
 }
 
 // SetBody sets body of the response.
 func (m *LocalNodeInfoResponse) SetBody(v *LocalNodeInfoResponse_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (m *LocalNodeInfoResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (m *LocalNodeInfoResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetBody sets body of the request.
 func (x *NetworkInfoRequest) SetBody(v *NetworkInfoRequest_Body) {
-	if x != nil {
-		x.Body = v
-	}
+	x.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (x *NetworkInfoRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if x != nil {
-		x.MetaHeader = v
-	}
+	x.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (x *NetworkInfoRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if x != nil {
-		x.VerifyHeader = v
-	}
+	x.VerifyHeader = v
 }
 
 // SetNetworkInfo sets information about the network.
 func (x *NetworkInfoResponse_Body) SetNetworkInfo(v *NetworkInfo) {
-	if x != nil {
-		x.NetworkInfo = v
-	}
+	x.NetworkInfo = v
 }
 
 // SetBody sets body of the response.
 func (x *NetworkInfoResponse) SetBody(v *NetworkInfoResponse_Body) {
-	if x != nil {
-		x.Body = v
-	}
+	x.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (x *NetworkInfoResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if x != nil {
-		x.MetaHeader = v
-	}
+	x.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (x *NetworkInfoResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if x != nil {
-		x.VerifyHeader = v
-	}
+	x.VerifyHeader = v
 }
diff --git a/netmap/grpc/types.go b/netmap/grpc/types.go
index 95b0acc4..940404a3 100644
--- a/netmap/grpc/types.go
+++ b/netmap/grpc/types.go
@@ -4,142 +4,102 @@ import refs "github.com/nspcc-dev/neofs-api-go/v2/refs/grpc"
 
 // SetReplicas of placement policy.
 func (m *PlacementPolicy) SetReplicas(v []*Replica) {
-	if m != nil {
-		m.Replicas = v
-	}
+	m.Replicas = v
 }
 
 // SetContainerBackupFactor of placement policy.
 func (m *PlacementPolicy) SetContainerBackupFactor(v uint32) {
-	if m != nil {
-		m.ContainerBackupFactor = v
-	}
+	m.ContainerBackupFactor = v
 }
 
 // SetSelectors of placement policy.
 func (m *PlacementPolicy) SetSelectors(v []*Selector) {
-	if m != nil {
-		m.Selectors = v
-	}
+	m.Selectors = v
 }
 
 // SetFilters of placement policy.
 func (m *PlacementPolicy) SetFilters(v []*Filter) {
-	if m != nil {
-		m.Filters = v
-	}
+	m.Filters = v
 }
 
 // SetSubnetID sets ID of subnet.
 func (m *PlacementPolicy) SetSubnetID(v *refs.SubnetID) {
-	if m != nil {
-		m.SubnetId = v
-	}
+	m.SubnetId = v
 }
 
 // SetName of placement filter.
 func (m *Filter) SetName(v string) {
-	if m != nil {
-		m.Name = v
-	}
+	m.Name = v
 }
 
 // SetKey of placement filter.
 func (m *Filter) SetKey(v string) {
-	if m != nil {
-		m.Key = v
-	}
+	m.Key = v
 }
 
 // SetOperation of placement filter.
 func (m *Filter) SetOp(v Operation) {
-	if m != nil {
-		m.Op = v
-	}
+	m.Op = v
 }
 
 // SetValue of placement filter.
 func (m *Filter) SetValue(v string) {
-	if m != nil {
-		m.Value = v
-	}
+	m.Value = v
 }
 
 // SetFilters sets sub-filters of placement filter.
 func (m *Filter) SetFilters(v []*Filter) {
-	if m != nil {
-		m.Filters = v
-	}
+	m.Filters = v
 }
 
 // SetName of placement selector.
 func (m *Selector) SetName(v string) {
-	if m != nil {
-		m.Name = v
-	}
+	m.Name = v
 }
 
 // SetCount of nodes of placement selector.
 func (m *Selector) SetCount(v uint32) {
-	if m != nil {
-		m.Count = v
-	}
+	m.Count = v
 }
 
 // SetAttribute of nodes of placement selector.
 func (m *Selector) SetAttribute(v string) {
-	if m != nil {
-		m.Attribute = v
-	}
+	m.Attribute = v
 }
 
 // SetFilter of placement selector.
 func (m *Selector) SetFilter(v string) {
-	if m != nil {
-		m.Filter = v
-	}
+	m.Filter = v
 }
 
 // SetClause of placement selector.
 func (m *Selector) SetClause(v Clause) {
-	if m != nil {
-		m.Clause = v
-	}
+	m.Clause = v
 }
 
 // SetCount of object replica.
 func (m *Replica) SetCount(v uint32) {
-	if m != nil {
-		m.Count = v
-	}
+	m.Count = v
 }
 
 // SetSelector of object replica.
 func (m *Replica) SetSelector(v string) {
-	if m != nil {
-		m.Selector = v
-	}
+	m.Selector = v
 }
 
 // SetKey sets key to the node attribute.
 func (m *NodeInfo_Attribute) SetKey(v string) {
-	if m != nil {
-		m.Key = v
-	}
+	m.Key = v
 }
 
 // SetValue sets value of the node attribute.
 func (m *NodeInfo_Attribute) SetValue(v string) {
-	if m != nil {
-		m.Value = v
-	}
+	m.Value = v
 }
 
 // SetParent sets value of the node parents.
 func (m *NodeInfo_Attribute) SetParents(v []string) {
-	if m != nil {
-		m.Parents = v
-	}
+	m.Parents = v
 }
 
 // SetAddress sets node network address.
@@ -151,58 +111,42 @@ func (m *NodeInfo) SetAddress(v string) {
 
 // SetAddresses sets list of network addresses of the node.
 func (m *NodeInfo) SetAddresses(v []string) {
-	if m != nil {
-		m.Addresses = v
-	}
+	m.Addresses = v
 }
 
 // SetPublicKey sets node public key in a binary format.
 func (m *NodeInfo) SetPublicKey(v []byte) {
-	if m != nil {
-		m.PublicKey = v
-	}
+	m.PublicKey = v
 }
 
 // SetAttributes sets list of the node attributes.
 func (m *NodeInfo) SetAttributes(v []*NodeInfo_Attribute) {
-	if m != nil {
-		m.Attributes = v
-	}
+	m.Attributes = v
 }
 
 // SetState sets node state.
 func (m *NodeInfo) SetState(v NodeInfo_State) {
-	if m != nil {
-		m.State = v
-	}
+	m.State = v
 }
 
 // SetCurrentEpoch sets number of the current epoch.
 func (x *NetworkInfo) SetCurrentEpoch(v uint64) {
-	if x != nil {
-		x.CurrentEpoch = v
-	}
+	x.CurrentEpoch = v
 }
 
 // SetMagicNumber sets magic number of the sidechain.
 func (x *NetworkInfo) SetMagicNumber(v uint64) {
-	if x != nil {
-		x.MagicNumber = v
-	}
+	x.MagicNumber = v
 }
 
 // SetMsPerBlock sets MillisecondsPerBlock network parameter.
 func (x *NetworkInfo) SetMsPerBlock(v int64) {
-	if x != nil {
-		x.MsPerBlock = v
-	}
+	x.MsPerBlock = v
 }
 
 // SetNetworkConfig sets NeoFS network configuration.
 func (x *NetworkInfo) SetNetworkConfig(v *NetworkConfig) {
-	if x != nil {
-		x.NetworkConfig = v
-	}
+	x.NetworkConfig = v
 }
 
 // FromString parses Clause from a string representation,
@@ -246,21 +190,15 @@ func (x *NodeInfo_State) FromString(s string) bool {
 
 // SetKey sets parameter key.
 func (x *NetworkConfig_Parameter) SetKey(v []byte) {
-	if x != nil {
-		x.Key = v
-	}
+	x.Key = v
 }
 
 // SetValue sets parameter value.
 func (x *NetworkConfig_Parameter) SetValue(v []byte) {
-	if x != nil {
-		x.Value = v
-	}
+	x.Value = v
 }
 
 // SetParameters sets NeoFS network parameters.
 func (x *NetworkConfig) SetParameters(v []*NetworkConfig_Parameter) {
-	if x != nil {
-		x.Parameters = v
-	}
+	x.Parameters = v
 }
diff --git a/netmap/types.go b/netmap/types.go
index 19ca974b..cc190afd 100644
--- a/netmap/types.go
+++ b/netmap/types.go
@@ -123,9 +123,7 @@ func (f *Filter) GetFilters() []Filter {
 }
 
 func (f *Filter) SetFilters(filters []Filter) {
-	if f != nil {
-		f.filters = filters
-	}
+	f.filters = filters
 }
 
 func (f *Filter) GetValue() string {
@@ -137,9 +135,7 @@ func (f *Filter) GetValue() string {
 }
 
 func (f *Filter) SetValue(value string) {
-	if f != nil {
-		f.value = value
-	}
+	f.value = value
 }
 
 func (f *Filter) GetOp() Operation {
@@ -150,9 +146,7 @@ func (f *Filter) GetOp() Operation {
 }
 
 func (f *Filter) SetOp(op Operation) {
-	if f != nil {
-		f.op = op
-	}
+	f.op = op
 }
 
 func (f *Filter) GetKey() string {
@@ -164,9 +158,7 @@ func (f *Filter) GetKey() string {
 }
 
 func (f *Filter) SetKey(key string) {
-	if f != nil {
-		f.key = key
-	}
+	f.key = key
 }
 
 func (f *Filter) GetName() string {
@@ -178,9 +170,7 @@ func (f *Filter) GetName() string {
 }
 
 func (f *Filter) SetName(name string) {
-	if f != nil {
-		f.name = name
-	}
+	f.name = name
 }
 
 func (s *Selector) GetFilter() string {
@@ -192,9 +182,7 @@ func (s *Selector) GetFilter() string {
 }
 
 func (s *Selector) SetFilter(filter string) {
-	if s != nil {
-		s.filter = filter
-	}
+	s.filter = filter
 }
 
 func (s *Selector) GetAttribute() string {
@@ -206,9 +194,7 @@ func (s *Selector) GetAttribute() string {
 }
 
 func (s *Selector) SetAttribute(attribute string) {
-	if s != nil {
-		s.attribute = attribute
-	}
+	s.attribute = attribute
 }
 
 func (s *Selector) GetClause() Clause {
@@ -220,9 +206,7 @@ func (s *Selector) GetClause() Clause {
 }
 
 func (s *Selector) SetClause(clause Clause) {
-	if s != nil {
-		s.clause = clause
-	}
+	s.clause = clause
 }
 
 func (s *Selector) GetCount() uint32 {
@@ -234,9 +218,7 @@ func (s *Selector) GetCount() uint32 {
 }
 
 func (s *Selector) SetCount(count uint32) {
-	if s != nil {
-		s.count = count
-	}
+	s.count = count
 }
 
 func (s *Selector) GetName() string {
@@ -248,9 +230,7 @@ func (s *Selector) GetName() string {
 }
 
 func (s *Selector) SetName(name string) {
-	if s != nil {
-		s.name = name
-	}
+	s.name = name
 }
 
 func (r *Replica) GetSelector() string {
@@ -262,9 +242,7 @@ func (r *Replica) GetSelector() string {
 }
 
 func (r *Replica) SetSelector(selector string) {
-	if r != nil {
-		r.selector = selector
-	}
+	r.selector = selector
 }
 
 func (r *Replica) GetCount() uint32 {
@@ -276,9 +254,7 @@ func (r *Replica) GetCount() uint32 {
 }
 
 func (r *Replica) SetCount(count uint32) {
-	if r != nil {
-		r.count = count
-	}
+	r.count = count
 }
 
 func (p *PlacementPolicy) GetFilters() []Filter {
@@ -290,9 +266,7 @@ func (p *PlacementPolicy) GetFilters() []Filter {
 }
 
 func (p *PlacementPolicy) SetFilters(filters []Filter) {
-	if p != nil {
-		p.filters = filters
-	}
+	p.filters = filters
 }
 
 func (p *PlacementPolicy) GetSelectors() []Selector {
@@ -304,9 +278,7 @@ func (p *PlacementPolicy) GetSelectors() []Selector {
 }
 
 func (p *PlacementPolicy) SetSelectors(selectors []Selector) {
-	if p != nil {
-		p.selectors = selectors
-	}
+	p.selectors = selectors
 }
 
 func (p *PlacementPolicy) GetContainerBackupFactor() uint32 {
@@ -318,9 +290,7 @@ func (p *PlacementPolicy) GetContainerBackupFactor() uint32 {
 }
 
 func (p *PlacementPolicy) SetContainerBackupFactor(backupFactor uint32) {
-	if p != nil {
-		p.backupFactor = backupFactor
-	}
+	p.backupFactor = backupFactor
 }
 
 func (p *PlacementPolicy) GetReplicas() []Replica {
@@ -348,9 +318,7 @@ func (a *Attribute) GetKey() string {
 }
 
 func (a *Attribute) SetKey(v string) {
-	if a != nil {
-		a.key = v
-	}
+	a.key = v
 }
 
 func (a *Attribute) GetValue() string {
@@ -362,9 +330,7 @@ func (a *Attribute) GetValue() string {
 }
 
 func (a *Attribute) SetValue(v string) {
-	if a != nil {
-		a.value = v
-	}
+	a.value = v
 }
 
 func (a *Attribute) GetParents() []string {
@@ -376,9 +342,7 @@ func (a *Attribute) GetParents() []string {
 }
 
 func (a *Attribute) SetParents(parent []string) {
-	if a != nil {
-		a.parents = parent
-	}
+	a.parents = parent
 }
 
 func (ni *NodeInfo) GetPublicKey() []byte {
@@ -390,9 +354,7 @@ func (ni *NodeInfo) GetPublicKey() []byte {
 }
 
 func (ni *NodeInfo) SetPublicKey(v []byte) {
-	if ni != nil {
-		ni.publicKey = v
-	}
+	ni.publicKey = v
 }
 
 // GetAddress returns node's network address.
@@ -416,9 +378,7 @@ func (ni *NodeInfo) SetAddress(v string) {
 
 // SetAddresses sets list of network addresses of the node.
 func (ni *NodeInfo) SetAddresses(v ...string) {
-	if ni != nil {
-		ni.addresses = v
-	}
+	ni.addresses = v
 }
 
 // NumberOfAddresses returns number of network addresses of the node.
@@ -453,9 +413,7 @@ func (ni *NodeInfo) GetAttributes() []Attribute {
 }
 
 func (ni *NodeInfo) SetAttributes(v []Attribute) {
-	if ni != nil {
-		ni.attributes = v
-	}
+	ni.attributes = v
 }
 
 func (ni *NodeInfo) GetState() NodeState {
@@ -467,9 +425,7 @@ func (ni *NodeInfo) GetState() NodeState {
 }
 
 func (ni *NodeInfo) SetState(state NodeState) {
-	if ni != nil {
-		ni.state = state
-	}
+	ni.state = state
 }
 
 func (l *LocalNodeInfoResponseBody) GetVersion() *refs.Version {
@@ -481,9 +437,7 @@ func (l *LocalNodeInfoResponseBody) GetVersion() *refs.Version {
 }
 
 func (l *LocalNodeInfoResponseBody) SetVersion(version *refs.Version) {
-	if l != nil {
-		l.version = version
-	}
+	l.version = version
 }
 
 func (l *LocalNodeInfoResponseBody) GetNodeInfo() *NodeInfo {
@@ -495,9 +449,7 @@ func (l *LocalNodeInfoResponseBody) GetNodeInfo() *NodeInfo {
 }
 
 func (l *LocalNodeInfoResponseBody) SetNodeInfo(nodeInfo *NodeInfo) {
-	if l != nil {
-		l.nodeInfo = nodeInfo
-	}
+	l.nodeInfo = nodeInfo
 }
 
 func (l *LocalNodeInfoRequest) GetBody() *LocalNodeInfoRequestBody {
@@ -508,9 +460,7 @@ func (l *LocalNodeInfoRequest) GetBody() *LocalNodeInfoRequestBody {
 }
 
 func (l *LocalNodeInfoRequest) SetBody(body *LocalNodeInfoRequestBody) {
-	if l != nil {
-		l.body = body
-	}
+	l.body = body
 }
 
 func (l *LocalNodeInfoResponse) GetBody() *LocalNodeInfoResponseBody {
@@ -521,9 +471,7 @@ func (l *LocalNodeInfoResponse) GetBody() *LocalNodeInfoResponseBody {
 }
 
 func (l *LocalNodeInfoResponse) SetBody(body *LocalNodeInfoResponseBody) {
-	if l != nil {
-		l.body = body
-	}
+	l.body = body
 }
 
 // NetworkParameter represents NeoFS network parameter.
@@ -542,9 +490,7 @@ func (x *NetworkParameter) GetKey() []byte {
 
 // SetKey sets parameter key.
 func (x *NetworkParameter) SetKey(k []byte) {
-	if x != nil {
-		x.k = k
-	}
+	x.k = k
 }
 
 // GetValue returns parameter value.
@@ -558,9 +504,7 @@ func (x *NetworkParameter) GetValue() []byte {
 
 // SetValue sets parameter value.
 func (x *NetworkParameter) SetValue(v []byte) {
-	if x != nil {
-		x.v = v
-	}
+	x.v = v
 }
 
 // NetworkConfig represents NeoFS network configuration.
@@ -593,9 +537,7 @@ func (x *NetworkConfig) IterateParameters(f func(*NetworkParameter) bool) {
 
 // SetParameters sets list of network parameters.
 func (x *NetworkConfig) SetParameters(v ...NetworkParameter) {
-	if x != nil {
-		x.ps = v
-	}
+	x.ps = v
 }
 
 // NetworkInfo groups information about
@@ -619,9 +561,7 @@ func (i *NetworkInfo) GetCurrentEpoch() uint64 {
 
 // SetCurrentEpoch sets number of the current epoch.
 func (i *NetworkInfo) SetCurrentEpoch(epoch uint64) {
-	if i != nil {
-		i.curEpoch = epoch
-	}
+	i.curEpoch = epoch
 }
 
 // GetMagicNumber returns magic number of the sidechain.
@@ -635,9 +575,7 @@ func (i *NetworkInfo) GetMagicNumber() uint64 {
 
 // SetMagicNumber sets magic number of the sidechain.
 func (i *NetworkInfo) SetMagicNumber(magic uint64) {
-	if i != nil {
-		i.magicNum = magic
-	}
+	i.magicNum = magic
 }
 
 // GetMsPerBlock returns MillisecondsPerBlock network parameter.
@@ -651,9 +589,7 @@ func (i *NetworkInfo) GetMsPerBlock() int64 {
 
 // SetMsPerBlock sets MillisecondsPerBlock network parameter.
 func (i *NetworkInfo) SetMsPerBlock(v int64) {
-	if i != nil {
-		i.msPerBlock = v
-	}
+	i.msPerBlock = v
 }
 
 // GetNetworkConfig returns NeoFS network configuration.
@@ -667,9 +603,7 @@ func (i *NetworkInfo) GetNetworkConfig() *NetworkConfig {
 
 // SetNetworkConfig sets NeoFS network configuration.
 func (i *NetworkInfo) SetNetworkConfig(v *NetworkConfig) {
-	if i != nil {
-		i.netCfg = v
-	}
+	i.netCfg = v
 }
 
 // NetworkInfoRequestBody is a structure of NetworkInfo request body.
@@ -691,9 +625,7 @@ func (i *NetworkInfoResponseBody) GetNetworkInfo() *NetworkInfo {
 
 // SetNetworkInfo sets information about the NeoFS network.
 func (i *NetworkInfoResponseBody) SetNetworkInfo(netInfo *NetworkInfo) {
-	if i != nil {
-		i.netInfo = netInfo
-	}
+	i.netInfo = netInfo
 }
 
 func (l *NetworkInfoRequest) GetBody() *NetworkInfoRequestBody {
@@ -704,9 +636,7 @@ func (l *NetworkInfoRequest) GetBody() *NetworkInfoRequestBody {
 }
 
 func (l *NetworkInfoRequest) SetBody(body *NetworkInfoRequestBody) {
-	if l != nil {
-		l.body = body
-	}
+	l.body = body
 }
 
 func (l *NetworkInfoResponse) GetBody() *NetworkInfoResponseBody {
@@ -717,7 +647,5 @@ func (l *NetworkInfoResponse) GetBody() *NetworkInfoResponseBody {
 }
 
 func (l *NetworkInfoResponse) SetBody(body *NetworkInfoResponseBody) {
-	if l != nil {
-		l.body = body
-	}
+	l.body = body
 }
diff --git a/object/grpc/service.go b/object/grpc/service.go
index e9b7659d..b77208fc 100644
--- a/object/grpc/service.go
+++ b/object/grpc/service.go
@@ -7,58 +7,42 @@ import (
 
 // SetAddress sets address of the requested object.
 func (m *GetRequest_Body) SetAddress(v *refs.Address) {
-	if m != nil {
-		m.Address = v
-	}
+	m.Address = v
 }
 
 // SetRaw sets raw flag of the request.
 func (m *GetRequest_Body) SetRaw(v bool) {
-	if m != nil {
-		m.Raw = v
-	}
+	m.Raw = v
 }
 
 // SetBody sets body of the request.
 func (m *GetRequest) SetBody(v *GetRequest_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (m *GetRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (m *GetRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetObjectId sets identifier of the object.
 func (m *GetResponse_Body_Init) SetObjectId(v *refs.ObjectID) {
-	if m != nil {
-		m.ObjectId = v
-	}
+	m.ObjectId = v
 }
 
 // SetSignature sets signature of the object identifier.
 func (m *GetResponse_Body_Init) SetSignature(v *refs.Signature) {
-	if m != nil {
-		m.Signature = v
-	}
+	m.Signature = v
 }
 
 // SetHeader sets header of the object.
 func (m *GetResponse_Body_Init) SetHeader(v *Header) {
-	if m != nil {
-		m.Header = v
-	}
+	m.Header = v
 }
 
 // GetChunk returns chunk of the object payload bytes.
@@ -72,83 +56,61 @@ func (m *GetResponse_Body_Chunk) GetChunk() []byte {
 
 // SetChunk sets chunk of the object payload bytes.
 func (m *GetResponse_Body_Chunk) SetChunk(v []byte) {
-	if m != nil {
-		m.Chunk = v
-	}
+	m.Chunk = v
 }
 
 // SetInit sets initial part of the object.
 func (m *GetResponse_Body) SetInit(v *GetResponse_Body_Init) {
-	if m != nil {
-		m.ObjectPart = &GetResponse_Body_Init_{
-			Init: v,
-		}
+	m.ObjectPart = &GetResponse_Body_Init_{
+		Init: v,
 	}
 }
 
 // SetChunk sets part of the object payload.
 func (m *GetResponse_Body) SetChunk(v *GetResponse_Body_Chunk) {
-	if m != nil {
-		m.ObjectPart = v
-	}
+	m.ObjectPart = v
 }
 
 // SetSplitInfo sets part of the object payload.
 func (m *GetResponse_Body) SetSplitInfo(v *SplitInfo) {
-	if m != nil {
-		m.ObjectPart = &GetResponse_Body_SplitInfo{
-			SplitInfo: v,
-		}
+	m.ObjectPart = &GetResponse_Body_SplitInfo{
+		SplitInfo: v,
 	}
 }
 
 // SetBody sets body of the response.
 func (m *GetResponse) SetBody(v *GetResponse_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (m *GetResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (m *GetResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetObjectId sets identifier of the object.
 func (m *PutRequest_Body_Init) SetObjectId(v *refs.ObjectID) {
-	if m != nil {
-		m.ObjectId = v
-	}
+	m.ObjectId = v
 }
 
 // SetSignature sets signature of the object identifier.
 func (m *PutRequest_Body_Init) SetSignature(v *refs.Signature) {
-	if m != nil {
-		m.Signature = v
-	}
+	m.Signature = v
 }
 
 // SetHeader sets header of the object.
 func (m *PutRequest_Body_Init) SetHeader(v *Header) {
-	if m != nil {
-		m.Header = v
-	}
+	m.Header = v
 }
 
 // SetCopiesNumber sets number of the copies to save.
 func (m *PutRequest_Body_Init) SetCopiesNumber(v uint32) {
-	if m != nil {
-		m.CopiesNumber = v
-	}
+	m.CopiesNumber = v
 }
 
 // GetChunk returns chunk of the object payload bytes.
@@ -162,381 +124,275 @@ func (m *PutRequest_Body_Chunk) GetChunk() []byte {
 
 // SetChunk sets chunk of the object payload bytes.
 func (m *PutRequest_Body_Chunk) SetChunk(v []byte) {
-	if m != nil {
-		m.Chunk = v
-	}
+	m.Chunk = v
 }
 
 // SetInit sets initial part of the object.
 func (m *PutRequest_Body) SetInit(v *PutRequest_Body_Init) {
-	if m != nil {
-		m.ObjectPart = &PutRequest_Body_Init_{
-			Init: v,
-		}
+	m.ObjectPart = &PutRequest_Body_Init_{
+		Init: v,
 	}
 }
 
 // SetChunk sets part of the object payload.
 func (m *PutRequest_Body) SetChunk(v *PutRequest_Body_Chunk) {
-	if m != nil {
-		m.ObjectPart = v
-	}
+	m.ObjectPart = v
 }
 
 // SetBody sets body of the request.
 func (m *PutRequest) SetBody(v *PutRequest_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (m *PutRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (m *PutRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetObjectId sets identifier of the saved object.
 func (m *PutResponse_Body) SetObjectId(v *refs.ObjectID) {
-	if m != nil {
-		m.ObjectId = v
-	}
+	m.ObjectId = v
 }
 
 // SetBody sets body of the response.
 func (m *PutResponse) SetBody(v *PutResponse_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (m *PutResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (m *PutResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetAddress sets address of the object to delete.
 func (m *DeleteRequest_Body) SetAddress(v *refs.Address) {
-	if m != nil {
-		m.Address = v
-	}
+	m.Address = v
 }
 
 // SetBody sets body of the request.
 func (m *DeleteRequest) SetBody(v *DeleteRequest_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (m *DeleteRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (m *DeleteRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetTombstone sets tombstone address.
 func (x *DeleteResponse_Body) SetTombstone(v *refs.Address) {
-	if x != nil {
-		x.Tombstone = v
-	}
+	x.Tombstone = v
 }
 
 // SetBody sets body of the response.
 func (m *DeleteResponse) SetBody(v *DeleteResponse_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (m *DeleteResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (m *DeleteResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetAddress sets address of the object with the requested header.
 func (m *HeadRequest_Body) SetAddress(v *refs.Address) {
-	if m != nil {
-		m.Address = v
-	}
+	m.Address = v
 }
 
 // SetMainOnly sets flag to return the minimal header subset.
 func (m *HeadRequest_Body) SetMainOnly(v bool) {
-	if m != nil {
-		m.MainOnly = v
-	}
+	m.MainOnly = v
 }
 
 // SetRaw sets raw flag of the request.
 func (m *HeadRequest_Body) SetRaw(v bool) {
-	if m != nil {
-		m.Raw = v
-	}
+	m.Raw = v
 }
 
 // SetBody sets body of the request.
 func (m *HeadRequest) SetBody(v *HeadRequest_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (m *HeadRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (m *HeadRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetHeader sets object header.
 func (m *HeaderWithSignature) SetHeader(v *Header) {
-	if m != nil {
-		m.Header = v
-	}
+	m.Header = v
 }
 
 // SetSignature of the header.
 func (m *HeaderWithSignature) SetSignature(v *refs.Signature) {
-	if m != nil {
-		m.Signature = v
-	}
+	m.Signature = v
 }
 
 // SetHeader sets full header of the object.
 func (m *HeadResponse_Body) SetHeader(v *HeaderWithSignature) {
-	if m != nil {
-		m.Head = &HeadResponse_Body_Header{
-			Header: v,
-		}
+	m.Head = &HeadResponse_Body_Header{
+		Header: v,
 	}
 }
 
 // SetShortHeader sets short header of the object.
 func (m *HeadResponse_Body) SetShortHeader(v *ShortHeader) {
-	if m != nil {
-		m.Head = &HeadResponse_Body_ShortHeader{
-			ShortHeader: v,
-		}
+	m.Head = &HeadResponse_Body_ShortHeader{
+		ShortHeader: v,
 	}
 }
 
 // SetSplitInfo sets meta info about split hierarchy of the object.
 func (m *HeadResponse_Body) SetSplitInfo(v *SplitInfo) {
-	if m != nil {
-		m.Head = &HeadResponse_Body_SplitInfo{
-			SplitInfo: v,
-		}
+	m.Head = &HeadResponse_Body_SplitInfo{
+		SplitInfo: v,
 	}
 }
 
 // SetBody sets body of the response.
 func (m *HeadResponse) SetBody(v *HeadResponse_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (m *HeadResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (m *HeadResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetMatchType sets match type of the filter.
 func (m *SearchRequest_Body_Filter) SetMatchType(v MatchType) {
-	if m != nil {
-		m.MatchType = v
-	}
+	m.MatchType = v
 }
 
 // SetKey sets key to the filtering header.
 func (m *SearchRequest_Body_Filter) SetKey(v string) {
-	if m != nil {
-		m.Key = v
-	}
+	m.Key = v
 }
 
 // SetValue sets value of the filtering header.
 func (m *SearchRequest_Body_Filter) SetValue(v string) {
-	if m != nil {
-		m.Value = v
-	}
+	m.Value = v
 }
 
 // SetVersion sets version of the search query.
 func (m *SearchRequest_Body) SetVersion(v uint32) {
-	if m != nil {
-		m.Version = v
-	}
+	m.Version = v
 }
 
 // SetFilters sets list of the query filters.
 func (m *SearchRequest_Body) SetFilters(v []*SearchRequest_Body_Filter) {
-	if m != nil {
-		m.Filters = v
-	}
+	m.Filters = v
 }
 
 // SetContainerId sets container ID of the search requets.
 func (m *SearchRequest_Body) SetContainerId(v *refs.ContainerID) {
-	if m != nil {
-		m.ContainerId = v
-	}
+	m.ContainerId = v
 }
 
 // SetBody sets body of the request.
 func (m *SearchRequest) SetBody(v *SearchRequest_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (m *SearchRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (m *SearchRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetIdList sets list of the identifiers of the matched objects.
 func (m *SearchResponse_Body) SetIdList(v []*refs.ObjectID) {
-	if m != nil {
-		m.IdList = v
-	}
+	m.IdList = v
 }
 
 // SetBody sets body of the response.
 func (m *SearchResponse) SetBody(v *SearchResponse_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (m *SearchResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (m *SearchResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetOffset sets offset of the payload range.
 func (m *Range) SetOffset(v uint64) {
-	if m != nil {
-		m.Offset = v
-	}
+	m.Offset = v
 }
 
 // SetLength sets length of the payload range.
 func (m *Range) SetLength(v uint64) {
-	if m != nil {
-		m.Length = v
-	}
+	m.Length = v
 }
 
 // SetAddress sets address of the object with the request payload range.
 func (m *GetRangeRequest_Body) SetAddress(v *refs.Address) {
-	if m != nil {
-		m.Address = v
-	}
+	m.Address = v
 }
 
 // SetRange sets range of the object payload.
 func (m *GetRangeRequest_Body) SetRange(v *Range) {
-	if m != nil {
-		m.Range = v
-	}
+	m.Range = v
 }
 
 // SetRaw sets raw flag of the request.
 func (m *GetRangeRequest_Body) SetRaw(v bool) {
-	if m != nil {
-		m.Raw = v
-	}
+	m.Raw = v
 }
 
 // SetBody sets body of the request.
 func (m *GetRangeRequest) SetBody(v *GetRangeRequest_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (m *GetRangeRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (m *GetRangeRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // GetChunk returns chunk of the object payload range bytes.
@@ -550,128 +406,92 @@ func (m *GetRangeResponse_Body_Chunk) GetChunk() []byte {
 
 // SetChunk sets chunk of the object payload range bytes.
 func (m *GetRangeResponse_Body_Chunk) SetChunk(v []byte) {
-	if m != nil {
-		m.Chunk = v
-	}
+	m.Chunk = v
 }
 
 // SetChunk sets chunk of the object payload.
 func (m *GetRangeResponse_Body) SetChunk(v *GetRangeResponse_Body_Chunk) {
-	if m != nil {
-		m.RangePart = v
-	}
+	m.RangePart = v
 }
 
 // SetSplitInfo sets meta info about split hierarchy of the object.
 func (m *GetRangeResponse_Body) SetSplitInfo(v *SplitInfo) {
-	if m != nil {
-		m.RangePart = &GetRangeResponse_Body_SplitInfo{
-			SplitInfo: v,
-		}
+	m.RangePart = &GetRangeResponse_Body_SplitInfo{
+		SplitInfo: v,
 	}
 }
 
 // SetBody sets body of the response.
 func (m *GetRangeResponse) SetBody(v *GetRangeResponse_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (m *GetRangeResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (m *GetRangeResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetAddress sets address of the object with the request payload range.
 func (m *GetRangeHashRequest_Body) SetAddress(v *refs.Address) {
-	if m != nil {
-		m.Address = v
-	}
+	m.Address = v
 }
 
 // SetRanges sets list of the ranges of the object payload.
 func (m *GetRangeHashRequest_Body) SetRanges(v []*Range) {
-	if m != nil {
-		m.Ranges = v
-	}
+	m.Ranges = v
 }
 
 // SetSalt sets salt for the object payload ranges.
 func (m *GetRangeHashRequest_Body) SetSalt(v []byte) {
-	if m != nil {
-		m.Salt = v
-	}
+	m.Salt = v
 }
 
 // Set sets salt for the object payload ranges.
 func (m *GetRangeHashRequest_Body) SetType(v refs.ChecksumType) {
-	if m != nil {
-		m.Type = v
-	}
+	m.Type = v
 }
 
 // SetBody sets body of the request.
 func (m *GetRangeHashRequest) SetBody(v *GetRangeHashRequest_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (m *GetRangeHashRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (m *GetRangeHashRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetHashList returns list of the range hashes.
 func (m *GetRangeHashResponse_Body) SetHashList(v [][]byte) {
-	if m != nil {
-		m.HashList = v
-	}
+	m.HashList = v
 }
 
 // SetHashList returns list of the range hashes.
 func (m *GetRangeHashResponse_Body) SetType(v refs.ChecksumType) {
-	if m != nil {
-		m.Type = v
-	}
+	m.Type = v
 }
 
 // SetBody sets body of the response.
 func (m *GetRangeHashResponse) SetBody(v *GetRangeHashResponse_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (m *GetRangeHashResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (m *GetRangeHashResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
diff --git a/object/grpc/types.go b/object/grpc/types.go
index 350056d4..10e063a8 100644
--- a/object/grpc/types.go
+++ b/object/grpc/types.go
@@ -7,233 +7,167 @@ import (
 
 // SetKey sets key to the object attribute.
 func (m *Header_Attribute) SetKey(v string) {
-	if m != nil {
-		m.Key = v
-	}
+	m.Key = v
 }
 
 // SetValue sets value of the object attribute.
 func (m *Header_Attribute) SetValue(v string) {
-	if m != nil {
-		m.Value = v
-	}
+	m.Value = v
 }
 
 // SetParent sets identifier of the parent object.
 func (m *Header_Split) SetParent(v *refs.ObjectID) {
-	if m != nil {
-		m.Parent = v
-	}
+	m.Parent = v
 }
 
 // SetPrevious sets identifier of the previous object in split-chain.
 func (m *Header_Split) SetPrevious(v *refs.ObjectID) {
-	if m != nil {
-		m.Previous = v
-	}
+	m.Previous = v
 }
 
 // SetParentSignature sets signature of the parent object header.
 func (m *Header_Split) SetParentSignature(v *refs.Signature) {
-	if m != nil {
-		m.ParentSignature = v
-	}
+	m.ParentSignature = v
 }
 
 // SetParentHeader sets parent header structure.
 func (m *Header_Split) SetParentHeader(v *Header) {
-	if m != nil {
-		m.ParentHeader = v
-	}
+	m.ParentHeader = v
 }
 
 // SetChildren sets list of the identifiers of the child objects.
 func (m *Header_Split) SetChildren(v []*refs.ObjectID) {
-	if m != nil {
-		m.Children = v
-	}
+	m.Children = v
 }
 
 // SetSplitId sets split ID of the object.
 func (m *Header_Split) SetSplitId(v []byte) {
-	if m != nil {
-		m.SplitId = v
-	}
+	m.SplitId = v
 }
 
 // SetContainerId sets identifier of the container.
 func (m *Header) SetContainerId(v *refs.ContainerID) {
-	if m != nil {
-		m.ContainerId = v
-	}
+	m.ContainerId = v
 }
 
 // SetOwnerId sets identifier of the object owner.
 func (m *Header) SetOwnerId(v *refs.OwnerID) {
-	if m != nil {
-		m.OwnerId = v
-	}
+	m.OwnerId = v
 }
 
 // SetCreationEpoch sets creation epoch number.
 func (m *Header) SetCreationEpoch(v uint64) {
-	if m != nil {
-		m.CreationEpoch = v
-	}
+	m.CreationEpoch = v
 }
 
 // SetVersion sets version of the object format.
 func (m *Header) SetVersion(v *refs.Version) {
-	if m != nil {
-		m.Version = v
-	}
+	m.Version = v
 }
 
 // SetPayloadLength sets length of the object payload.
 func (m *Header) SetPayloadLength(v uint64) {
-	if m != nil {
-		m.PayloadLength = v
-	}
+	m.PayloadLength = v
 }
 
 // SetPayloadHash sets hash of the object payload.
 func (m *Header) SetPayloadHash(v *refs.Checksum) {
-	if m != nil {
-		m.PayloadHash = v
-	}
+	m.PayloadHash = v
 }
 
 // SetObjectType sets type of the object.
 func (m *Header) SetObjectType(v ObjectType) {
-	if m != nil {
-		m.ObjectType = v
-	}
+	m.ObjectType = v
 }
 
 // SetHomomorphicHash sets homomorphic hash of the object payload.
 func (m *Header) SetHomomorphicHash(v *refs.Checksum) {
-	if m != nil {
-		m.HomomorphicHash = v
-	}
+	m.HomomorphicHash = v
 }
 
 // SetSessionToken sets session token.
 func (m *Header) SetSessionToken(v *session.SessionToken) {
-	if m != nil {
-		m.SessionToken = v
-	}
+	m.SessionToken = v
 }
 
 // SetAttributes sets list of the object attributes.
 func (m *Header) SetAttributes(v []*Header_Attribute) {
-	if m != nil {
-		m.Attributes = v
-	}
+	m.Attributes = v
 }
 
 // SetSplit sets split header.
 func (m *Header) SetSplit(v *Header_Split) {
-	if m != nil {
-		m.Split = v
-	}
+	m.Split = v
 }
 
 // SetObjectId sets identifier of the object.
 func (m *Object) SetObjectId(v *refs.ObjectID) {
-	if m != nil {
-		m.ObjectId = v
-	}
+	m.ObjectId = v
 }
 
 // SetSignature sets signature of the object identifier.
 func (m *Object) SetSignature(v *refs.Signature) {
-	if m != nil {
-		m.Signature = v
-	}
+	m.Signature = v
 }
 
 // SetHeader sets header of the object.
 func (m *Object) SetHeader(v *Header) {
-	if m != nil {
-		m.Header = v
-	}
+	m.Header = v
 }
 
 // SetPayload sets payload bytes of the object.
 func (m *Object) SetPayload(v []byte) {
-	if m != nil {
-		m.Payload = v
-	}
+	m.Payload = v
 }
 
 // SetVersion sets version of the object.
 func (m *ShortHeader) SetVersion(v *refs.Version) {
-	if m != nil {
-		m.Version = v
-	}
+	m.Version = v
 }
 
 // SetCreationEpoch sets creation epoch number.
 func (m *ShortHeader) SetCreationEpoch(v uint64) {
-	if m != nil {
-		m.CreationEpoch = v
-	}
+	m.CreationEpoch = v
 }
 
 // SetOwnerId sets identifier of the object owner.
 func (m *ShortHeader) SetOwnerId(v *refs.OwnerID) {
-	if m != nil {
-		m.OwnerId = v
-	}
+	m.OwnerId = v
 }
 
 // SetObjectType sets type of the object.
 func (m *ShortHeader) SetObjectType(v ObjectType) {
-	if m != nil {
-		m.ObjectType = v
-	}
+	m.ObjectType = v
 }
 
 // SetPayloadLength sets length of the object payload.
 func (m *ShortHeader) SetPayloadLength(v uint64) {
-	if m != nil {
-		m.PayloadLength = v
-	}
+	m.PayloadLength = v
 }
 
 // SetPayloadHash sets hash of the object payload.
 func (m *ShortHeader) SetPayloadHash(v *refs.Checksum) {
-	if m != nil {
-		m.PayloadHash = v
-	}
+	m.PayloadHash = v
 }
 
 // SetHomomorphicHash sets homomorphic hash of the object payload.
 func (m *ShortHeader) SetHomomorphicHash(v *refs.Checksum) {
-	if m != nil {
-		m.HomomorphicHash = v
-	}
+	m.HomomorphicHash = v
 }
 
 // SetSplitId sets id of split hierarchy.
 func (m *SplitInfo) SetSplitId(v []byte) {
-	if m != nil {
-		m.SplitId = v
-	}
+	m.SplitId = v
 }
 
 // SetLastPart sets id of most right child in split hierarchy.
 func (m *SplitInfo) SetLastPart(v *refs.ObjectID) {
-	if m != nil {
-		m.LastPart = v
-	}
+	m.LastPart = v
 }
 
 // SetLink sets id of linking object in split hierarchy.
 func (m *SplitInfo) SetLink(v *refs.ObjectID) {
-	if m != nil {
-		m.Link = v
-	}
+	m.Link = v
 }
 
 // FromString parses ObjectType from a string representation,
diff --git a/object/types.go b/object/types.go
index 240f22c2..15477c14 100644
--- a/object/types.go
+++ b/object/types.go
@@ -325,9 +325,7 @@ func (h *ShortHeader) GetVersion() *refs.Version {
 }
 
 func (h *ShortHeader) SetVersion(v *refs.Version) {
-	if h != nil {
-		h.version = v
-	}
+	h.version = v
 }
 
 func (h *ShortHeader) GetCreationEpoch() uint64 {
@@ -339,9 +337,7 @@ func (h *ShortHeader) GetCreationEpoch() uint64 {
 }
 
 func (h *ShortHeader) SetCreationEpoch(v uint64) {
-	if h != nil {
-		h.creatEpoch = v
-	}
+	h.creatEpoch = v
 }
 
 func (h *ShortHeader) GetOwnerID() *refs.OwnerID {
@@ -353,9 +349,7 @@ func (h *ShortHeader) GetOwnerID() *refs.OwnerID {
 }
 
 func (h *ShortHeader) SetOwnerID(v *refs.OwnerID) {
-	if h != nil {
-		h.ownerID = v
-	}
+	h.ownerID = v
 }
 
 func (h *ShortHeader) GetObjectType() Type {
@@ -367,9 +361,7 @@ func (h *ShortHeader) GetObjectType() Type {
 }
 
 func (h *ShortHeader) SetObjectType(v Type) {
-	if h != nil {
-		h.typ = v
-	}
+	h.typ = v
 }
 
 func (h *ShortHeader) GetPayloadLength() uint64 {
@@ -381,9 +373,7 @@ func (h *ShortHeader) GetPayloadLength() uint64 {
 }
 
 func (h *ShortHeader) SetPayloadLength(v uint64) {
-	if h != nil {
-		h.payloadLen = v
-	}
+	h.payloadLen = v
 }
 
 func (h *ShortHeader) GetPayloadHash() *refs.Checksum {
@@ -395,9 +385,7 @@ func (h *ShortHeader) GetPayloadHash() *refs.Checksum {
 }
 
 func (h *ShortHeader) SetPayloadHash(v *refs.Checksum) {
-	if h != nil {
-		h.payloadHash = v
-	}
+	h.payloadHash = v
 }
 
 func (h *ShortHeader) GetHomomorphicHash() *refs.Checksum {
@@ -409,9 +397,7 @@ func (h *ShortHeader) GetHomomorphicHash() *refs.Checksum {
 }
 
 func (h *ShortHeader) SetHomomorphicHash(v *refs.Checksum) {
-	if h != nil {
-		h.homoHash = v
-	}
+	h.homoHash = v
 }
 
 func (h *ShortHeader) getHeaderPart() {}
@@ -425,9 +411,7 @@ func (a *Attribute) GetKey() string {
 }
 
 func (a *Attribute) SetKey(v string) {
-	if a != nil {
-		a.key = v
-	}
+	a.key = v
 }
 
 func (a *Attribute) GetValue() string {
@@ -439,9 +423,7 @@ func (a *Attribute) GetValue() string {
 }
 
 func (a *Attribute) SetValue(v string) {
-	if a != nil {
-		a.val = v
-	}
+	a.val = v
 }
 
 func (h *SplitHeader) GetParent() *refs.ObjectID {
@@ -453,9 +435,7 @@ func (h *SplitHeader) GetParent() *refs.ObjectID {
 }
 
 func (h *SplitHeader) SetParent(v *refs.ObjectID) {
-	if h != nil {
-		h.par = v
-	}
+	h.par = v
 }
 
 func (h *SplitHeader) GetPrevious() *refs.ObjectID {
@@ -467,9 +447,7 @@ func (h *SplitHeader) GetPrevious() *refs.ObjectID {
 }
 
 func (h *SplitHeader) SetPrevious(v *refs.ObjectID) {
-	if h != nil {
-		h.prev = v
-	}
+	h.prev = v
 }
 
 func (h *SplitHeader) GetParentSignature() *refs.Signature {
@@ -481,9 +459,7 @@ func (h *SplitHeader) GetParentSignature() *refs.Signature {
 }
 
 func (h *SplitHeader) SetParentSignature(v *refs.Signature) {
-	if h != nil {
-		h.parSig = v
-	}
+	h.parSig = v
 }
 
 func (h *SplitHeader) GetParentHeader() *Header {
@@ -495,9 +471,7 @@ func (h *SplitHeader) GetParentHeader() *Header {
 }
 
 func (h *SplitHeader) SetParentHeader(v *Header) {
-	if h != nil {
-		h.parHdr = v
-	}
+	h.parHdr = v
 }
 
 func (h *SplitHeader) GetChildren() []refs.ObjectID {
@@ -509,9 +483,7 @@ func (h *SplitHeader) GetChildren() []refs.ObjectID {
 }
 
 func (h *SplitHeader) SetChildren(v []refs.ObjectID) {
-	if h != nil {
-		h.children = v
-	}
+	h.children = v
 }
 
 func (h *SplitHeader) GetSplitID() []byte {
@@ -523,9 +495,7 @@ func (h *SplitHeader) GetSplitID() []byte {
 }
 
 func (h *SplitHeader) SetSplitID(v []byte) {
-	if h != nil {
-		h.splitID = v
-	}
+	h.splitID = v
 }
 
 func (h *Header) GetVersion() *refs.Version {
@@ -537,9 +507,7 @@ func (h *Header) GetVersion() *refs.Version {
 }
 
 func (h *Header) SetVersion(v *refs.Version) {
-	if h != nil {
-		h.version = v
-	}
+	h.version = v
 }
 
 func (h *Header) GetContainerID() *refs.ContainerID {
@@ -551,9 +519,7 @@ func (h *Header) GetContainerID() *refs.ContainerID {
 }
 
 func (h *Header) SetContainerID(v *refs.ContainerID) {
-	if h != nil {
-		h.cid = v
-	}
+	h.cid = v
 }
 
 func (h *Header) GetOwnerID() *refs.OwnerID {
@@ -565,9 +531,7 @@ func (h *Header) GetOwnerID() *refs.OwnerID {
 }
 
 func (h *Header) SetOwnerID(v *refs.OwnerID) {
-	if h != nil {
-		h.ownerID = v
-	}
+	h.ownerID = v
 }
 
 func (h *Header) GetCreationEpoch() uint64 {
@@ -579,9 +543,7 @@ func (h *Header) GetCreationEpoch() uint64 {
 }
 
 func (h *Header) SetCreationEpoch(v uint64) {
-	if h != nil {
-		h.creatEpoch = v
-	}
+	h.creatEpoch = v
 }
 
 func (h *Header) GetPayloadLength() uint64 {
@@ -593,9 +555,7 @@ func (h *Header) GetPayloadLength() uint64 {
 }
 
 func (h *Header) SetPayloadLength(v uint64) {
-	if h != nil {
-		h.payloadLen = v
-	}
+	h.payloadLen = v
 }
 
 func (h *Header) GetPayloadHash() *refs.Checksum {
@@ -607,9 +567,7 @@ func (h *Header) GetPayloadHash() *refs.Checksum {
 }
 
 func (h *Header) SetPayloadHash(v *refs.Checksum) {
-	if h != nil {
-		h.payloadHash = v
-	}
+	h.payloadHash = v
 }
 
 func (h *Header) GetObjectType() Type {
@@ -621,9 +579,7 @@ func (h *Header) GetObjectType() Type {
 }
 
 func (h *Header) SetObjectType(v Type) {
-	if h != nil {
-		h.typ = v
-	}
+	h.typ = v
 }
 
 func (h *Header) GetHomomorphicHash() *refs.Checksum {
@@ -635,9 +591,7 @@ func (h *Header) GetHomomorphicHash() *refs.Checksum {
 }
 
 func (h *Header) SetHomomorphicHash(v *refs.Checksum) {
-	if h != nil {
-		h.homoHash = v
-	}
+	h.homoHash = v
 }
 
 func (h *Header) GetSessionToken() *session.Token {
@@ -649,9 +603,7 @@ func (h *Header) GetSessionToken() *session.Token {
 }
 
 func (h *Header) SetSessionToken(v *session.Token) {
-	if h != nil {
-		h.sessionToken = v
-	}
+	h.sessionToken = v
 }
 
 func (h *Header) GetAttributes() []Attribute {
@@ -663,9 +615,7 @@ func (h *Header) GetAttributes() []Attribute {
 }
 
 func (h *Header) SetAttributes(v []Attribute) {
-	if h != nil {
-		h.attr = v
-	}
+	h.attr = v
 }
 
 func (h *Header) GetSplit() *SplitHeader {
@@ -677,9 +627,7 @@ func (h *Header) GetSplit() *SplitHeader {
 }
 
 func (h *Header) SetSplit(v *SplitHeader) {
-	if h != nil {
-		h.split = v
-	}
+	h.split = v
 }
 
 func (h *HeaderWithSignature) GetHeader() *Header {
@@ -691,9 +639,7 @@ func (h *HeaderWithSignature) GetHeader() *Header {
 }
 
 func (h *HeaderWithSignature) SetHeader(v *Header) {
-	if h != nil {
-		h.header = v
-	}
+	h.header = v
 }
 
 func (h *HeaderWithSignature) GetSignature() *refs.Signature {
@@ -705,9 +651,7 @@ func (h *HeaderWithSignature) GetSignature() *refs.Signature {
 }
 
 func (h *HeaderWithSignature) SetSignature(v *refs.Signature) {
-	if h != nil {
-		h.signature = v
-	}
+	h.signature = v
 }
 
 func (h *HeaderWithSignature) getHeaderPart() {}
@@ -721,9 +665,7 @@ func (o *Object) GetObjectID() *refs.ObjectID {
 }
 
 func (o *Object) SetObjectID(v *refs.ObjectID) {
-	if o != nil {
-		o.objectID = v
-	}
+	o.objectID = v
 }
 
 func (o *Object) GetSignature() *refs.Signature {
@@ -735,9 +677,7 @@ func (o *Object) GetSignature() *refs.Signature {
 }
 
 func (o *Object) SetSignature(v *refs.Signature) {
-	if o != nil {
-		o.idSig = v
-	}
+	o.idSig = v
 }
 
 func (o *Object) GetHeader() *Header {
@@ -749,9 +689,7 @@ func (o *Object) GetHeader() *Header {
 }
 
 func (o *Object) SetHeader(v *Header) {
-	if o != nil {
-		o.header = v
-	}
+	o.header = v
 }
 
 func (o *Object) GetPayload() []byte {
@@ -763,9 +701,7 @@ func (o *Object) GetPayload() []byte {
 }
 
 func (o *Object) SetPayload(v []byte) {
-	if o != nil {
-		o.payload = v
-	}
+	o.payload = v
 }
 
 func (s *SplitInfo) GetSplitID() []byte {
@@ -777,9 +713,7 @@ func (s *SplitInfo) GetSplitID() []byte {
 }
 
 func (s *SplitInfo) SetSplitID(v []byte) {
-	if s != nil {
-		s.splitID = v
-	}
+	s.splitID = v
 }
 
 func (s *SplitInfo) GetLastPart() *refs.ObjectID {
@@ -791,9 +725,7 @@ func (s *SplitInfo) GetLastPart() *refs.ObjectID {
 }
 
 func (s *SplitInfo) SetLastPart(v *refs.ObjectID) {
-	if s != nil {
-		s.lastPart = v
-	}
+	s.lastPart = v
 }
 
 func (s *SplitInfo) GetLink() *refs.ObjectID {
@@ -805,9 +737,7 @@ func (s *SplitInfo) GetLink() *refs.ObjectID {
 }
 
 func (s *SplitInfo) SetLink(v *refs.ObjectID) {
-	if s != nil {
-		s.link = v
-	}
+	s.link = v
 }
 
 func (s *SplitInfo) getObjectPart() {}
@@ -825,9 +755,7 @@ func (r *GetRequestBody) GetAddress() *refs.Address {
 }
 
 func (r *GetRequestBody) SetAddress(v *refs.Address) {
-	if r != nil {
-		r.addr = v
-	}
+	r.addr = v
 }
 
 func (r *GetRequestBody) GetRaw() bool {
@@ -839,9 +767,7 @@ func (r *GetRequestBody) GetRaw() bool {
 }
 
 func (r *GetRequestBody) SetRaw(v bool) {
-	if r != nil {
-		r.raw = v
-	}
+	r.raw = v
 }
 
 func (r *GetRequest) GetBody() *GetRequestBody {
@@ -853,9 +779,7 @@ func (r *GetRequest) GetBody() *GetRequestBody {
 }
 
 func (r *GetRequest) SetBody(v *GetRequestBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *GetObjectPartInit) GetObjectID() *refs.ObjectID {
@@ -867,9 +791,7 @@ func (r *GetObjectPartInit) GetObjectID() *refs.ObjectID {
 }
 
 func (r *GetObjectPartInit) SetObjectID(v *refs.ObjectID) {
-	if r != nil {
-		r.id = v
-	}
+	r.id = v
 }
 
 func (r *GetObjectPartInit) GetSignature() *refs.Signature {
@@ -881,9 +803,7 @@ func (r *GetObjectPartInit) GetSignature() *refs.Signature {
 }
 
 func (r *GetObjectPartInit) SetSignature(v *refs.Signature) {
-	if r != nil {
-		r.sig = v
-	}
+	r.sig = v
 }
 
 func (r *GetObjectPartInit) GetHeader() *Header {
@@ -895,9 +815,7 @@ func (r *GetObjectPartInit) GetHeader() *Header {
 }
 
 func (r *GetObjectPartInit) SetHeader(v *Header) {
-	if r != nil {
-		r.hdr = v
-	}
+	r.hdr = v
 }
 
 func (r *GetObjectPartInit) getObjectPart() {}
@@ -911,9 +829,7 @@ func (r *GetObjectPartChunk) GetChunk() []byte {
 }
 
 func (r *GetObjectPartChunk) SetChunk(v []byte) {
-	if r != nil {
-		r.chunk = v
-	}
+	r.chunk = v
 }
 
 func (r *GetObjectPartChunk) getObjectPart() {}
@@ -927,9 +843,7 @@ func (r *GetResponseBody) GetObjectPart() GetObjectPart {
 }
 
 func (r *GetResponseBody) SetObjectPart(v GetObjectPart) {
-	if r != nil {
-		r.objPart = v
-	}
+	r.objPart = v
 }
 
 func (r *GetResponse) GetBody() *GetResponseBody {
@@ -941,9 +855,7 @@ func (r *GetResponse) GetBody() *GetResponseBody {
 }
 
 func (r *GetResponse) SetBody(v *GetResponseBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *PutObjectPartInit) GetObjectID() *refs.ObjectID {
@@ -955,9 +867,7 @@ func (r *PutObjectPartInit) GetObjectID() *refs.ObjectID {
 }
 
 func (r *PutObjectPartInit) SetObjectID(v *refs.ObjectID) {
-	if r != nil {
-		r.id = v
-	}
+	r.id = v
 }
 
 func (r *PutObjectPartInit) GetSignature() *refs.Signature {
@@ -969,9 +879,7 @@ func (r *PutObjectPartInit) GetSignature() *refs.Signature {
 }
 
 func (r *PutObjectPartInit) SetSignature(v *refs.Signature) {
-	if r != nil {
-		r.sig = v
-	}
+	r.sig = v
 }
 
 func (r *PutObjectPartInit) GetHeader() *Header {
@@ -983,9 +891,7 @@ func (r *PutObjectPartInit) GetHeader() *Header {
 }
 
 func (r *PutObjectPartInit) SetHeader(v *Header) {
-	if r != nil {
-		r.hdr = v
-	}
+	r.hdr = v
 }
 
 func (r *PutObjectPartInit) GetCopiesNumber() uint32 {
@@ -997,9 +903,7 @@ func (r *PutObjectPartInit) GetCopiesNumber() uint32 {
 }
 
 func (r *PutObjectPartInit) SetCopiesNumber(v uint32) {
-	if r != nil {
-		r.copyNum = v
-	}
+	r.copyNum = v
 }
 
 func (r *PutObjectPartInit) putObjectPart() {}
@@ -1013,9 +917,7 @@ func (r *PutObjectPartChunk) GetChunk() []byte {
 }
 
 func (r *PutObjectPartChunk) SetChunk(v []byte) {
-	if r != nil {
-		r.chunk = v
-	}
+	r.chunk = v
 }
 
 func (r *PutObjectPartChunk) putObjectPart() {}
@@ -1029,9 +931,7 @@ func (r *PutRequestBody) GetObjectPart() PutObjectPart {
 }
 
 func (r *PutRequestBody) SetObjectPart(v PutObjectPart) {
-	if r != nil {
-		r.objPart = v
-	}
+	r.objPart = v
 }
 
 func (r *PutRequest) GetBody() *PutRequestBody {
@@ -1043,9 +943,7 @@ func (r *PutRequest) GetBody() *PutRequestBody {
 }
 
 func (r *PutRequest) SetBody(v *PutRequestBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *PutResponseBody) GetObjectID() *refs.ObjectID {
@@ -1057,9 +955,7 @@ func (r *PutResponseBody) GetObjectID() *refs.ObjectID {
 }
 
 func (r *PutResponseBody) SetObjectID(v *refs.ObjectID) {
-	if r != nil {
-		r.id = v
-	}
+	r.id = v
 }
 
 func (r *PutResponse) GetBody() *PutResponseBody {
@@ -1071,9 +967,7 @@ func (r *PutResponse) GetBody() *PutResponseBody {
 }
 
 func (r *PutResponse) SetBody(v *PutResponseBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *DeleteRequestBody) GetAddress() *refs.Address {
@@ -1085,9 +979,7 @@ func (r *DeleteRequestBody) GetAddress() *refs.Address {
 }
 
 func (r *DeleteRequestBody) SetAddress(v *refs.Address) {
-	if r != nil {
-		r.addr = v
-	}
+	r.addr = v
 }
 
 func (r *DeleteRequest) GetBody() *DeleteRequestBody {
@@ -1099,9 +991,7 @@ func (r *DeleteRequest) GetBody() *DeleteRequestBody {
 }
 
 func (r *DeleteRequest) SetBody(v *DeleteRequestBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 // GetTombstone returns tombstone address.
@@ -1115,9 +1005,7 @@ func (r *DeleteResponseBody) GetTombstone() *refs.Address {
 
 // SetTombstone sets tombstone address.
 func (r *DeleteResponseBody) SetTombstone(v *refs.Address) {
-	if r != nil {
-		r.tombstone = v
-	}
+	r.tombstone = v
 }
 
 func (r *DeleteResponse) GetBody() *DeleteResponseBody {
@@ -1129,9 +1017,7 @@ func (r *DeleteResponse) GetBody() *DeleteResponseBody {
 }
 
 func (r *DeleteResponse) SetBody(v *DeleteResponseBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *HeadRequestBody) GetAddress() *refs.Address {
@@ -1143,9 +1029,7 @@ func (r *HeadRequestBody) GetAddress() *refs.Address {
 }
 
 func (r *HeadRequestBody) SetAddress(v *refs.Address) {
-	if r != nil {
-		r.addr = v
-	}
+	r.addr = v
 }
 
 func (r *HeadRequestBody) GetMainOnly() bool {
@@ -1157,9 +1041,7 @@ func (r *HeadRequestBody) GetMainOnly() bool {
 }
 
 func (r *HeadRequestBody) SetMainOnly(v bool) {
-	if r != nil {
-		r.mainOnly = v
-	}
+	r.mainOnly = v
 }
 
 func (r *HeadRequestBody) GetRaw() bool {
@@ -1171,9 +1053,7 @@ func (r *HeadRequestBody) GetRaw() bool {
 }
 
 func (r *HeadRequestBody) SetRaw(v bool) {
-	if r != nil {
-		r.raw = v
-	}
+	r.raw = v
 }
 
 func (r *HeadRequest) GetBody() *HeadRequestBody {
@@ -1185,9 +1065,7 @@ func (r *HeadRequest) GetBody() *HeadRequestBody {
 }
 
 func (r *HeadRequest) SetBody(v *HeadRequestBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *HeadResponseBody) GetHeaderPart() GetHeaderPart {
@@ -1199,9 +1077,7 @@ func (r *HeadResponseBody) GetHeaderPart() GetHeaderPart {
 }
 
 func (r *HeadResponseBody) SetHeaderPart(v GetHeaderPart) {
-	if r != nil {
-		r.hdrPart = v
-	}
+	r.hdrPart = v
 }
 
 func (r *HeadResponse) GetBody() *HeadResponseBody {
@@ -1213,9 +1089,7 @@ func (r *HeadResponse) GetBody() *HeadResponseBody {
 }
 
 func (r *HeadResponse) SetBody(v *HeadResponseBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (f *SearchFilter) GetMatchType() MatchType {
@@ -1227,9 +1101,7 @@ func (f *SearchFilter) GetMatchType() MatchType {
 }
 
 func (f *SearchFilter) SetMatchType(v MatchType) {
-	if f != nil {
-		f.matchType = v
-	}
+	f.matchType = v
 }
 
 func (f *SearchFilter) GetKey() string {
@@ -1241,9 +1113,7 @@ func (f *SearchFilter) GetKey() string {
 }
 
 func (f *SearchFilter) SetKey(v string) {
-	if f != nil {
-		f.key = v
-	}
+	f.key = v
 }
 
 func (f *SearchFilter) GetValue() string {
@@ -1255,9 +1125,7 @@ func (f *SearchFilter) GetValue() string {
 }
 
 func (f *SearchFilter) SetValue(v string) {
-	if f != nil {
-		f.val = v
-	}
+	f.val = v
 }
 
 func (r *SearchRequestBody) GetContainerID() *refs.ContainerID {
@@ -1269,9 +1137,7 @@ func (r *SearchRequestBody) GetContainerID() *refs.ContainerID {
 }
 
 func (r *SearchRequestBody) SetContainerID(v *refs.ContainerID) {
-	if r != nil {
-		r.cid = v
-	}
+	r.cid = v
 }
 
 func (r *SearchRequestBody) GetVersion() uint32 {
@@ -1283,9 +1149,7 @@ func (r *SearchRequestBody) GetVersion() uint32 {
 }
 
 func (r *SearchRequestBody) SetVersion(v uint32) {
-	if r != nil {
-		r.version = v
-	}
+	r.version = v
 }
 
 func (r *SearchRequestBody) GetFilters() []SearchFilter {
@@ -1297,9 +1161,7 @@ func (r *SearchRequestBody) GetFilters() []SearchFilter {
 }
 
 func (r *SearchRequestBody) SetFilters(v []SearchFilter) {
-	if r != nil {
-		r.filters = v
-	}
+	r.filters = v
 }
 
 func (r *SearchRequest) GetBody() *SearchRequestBody {
@@ -1311,9 +1173,7 @@ func (r *SearchRequest) GetBody() *SearchRequestBody {
 }
 
 func (r *SearchRequest) SetBody(v *SearchRequestBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *SearchResponseBody) GetIDList() []refs.ObjectID {
@@ -1325,9 +1185,7 @@ func (r *SearchResponseBody) GetIDList() []refs.ObjectID {
 }
 
 func (r *SearchResponseBody) SetIDList(v []refs.ObjectID) {
-	if r != nil {
-		r.idList = v
-	}
+	r.idList = v
 }
 
 func (r *SearchResponse) GetBody() *SearchResponseBody {
@@ -1339,9 +1197,7 @@ func (r *SearchResponse) GetBody() *SearchResponseBody {
 }
 
 func (r *SearchResponse) SetBody(v *SearchResponseBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *Range) GetOffset() uint64 {
@@ -1353,9 +1209,7 @@ func (r *Range) GetOffset() uint64 {
 }
 
 func (r *Range) SetOffset(v uint64) {
-	if r != nil {
-		r.off = v
-	}
+	r.off = v
 }
 
 func (r *Range) GetLength() uint64 {
@@ -1367,9 +1221,7 @@ func (r *Range) GetLength() uint64 {
 }
 
 func (r *Range) SetLength(v uint64) {
-	if r != nil {
-		r.len = v
-	}
+	r.len = v
 }
 
 func (r *GetRangeRequestBody) GetAddress() *refs.Address {
@@ -1381,9 +1233,7 @@ func (r *GetRangeRequestBody) GetAddress() *refs.Address {
 }
 
 func (r *GetRangeRequestBody) SetAddress(v *refs.Address) {
-	if r != nil {
-		r.addr = v
-	}
+	r.addr = v
 }
 
 func (r *GetRangeRequestBody) GetRange() *Range {
@@ -1395,9 +1245,7 @@ func (r *GetRangeRequestBody) GetRange() *Range {
 }
 
 func (r *GetRangeRequestBody) SetRange(v *Range) {
-	if r != nil {
-		r.rng = v
-	}
+	r.rng = v
 }
 
 func (r *GetRangeRequestBody) GetRaw() bool {
@@ -1409,9 +1257,7 @@ func (r *GetRangeRequestBody) GetRaw() bool {
 }
 
 func (r *GetRangeRequestBody) SetRaw(v bool) {
-	if r != nil {
-		r.raw = v
-	}
+	r.raw = v
 }
 
 func (r *GetRangeRequest) GetBody() *GetRangeRequestBody {
@@ -1423,9 +1269,7 @@ func (r *GetRangeRequest) GetBody() *GetRangeRequestBody {
 }
 
 func (r *GetRangeRequest) SetBody(v *GetRangeRequestBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *GetRangePartChunk) GetChunk() []byte {
@@ -1437,9 +1281,7 @@ func (r *GetRangePartChunk) GetChunk() []byte {
 }
 
 func (r *GetRangePartChunk) SetChunk(v []byte) {
-	if r != nil {
-		r.chunk = v
-	}
+	r.chunk = v
 }
 
 func (r *GetRangePartChunk) getRangePart() {}
@@ -1453,9 +1295,7 @@ func (r *GetRangeResponseBody) GetRangePart() GetRangePart {
 }
 
 func (r *GetRangeResponseBody) SetRangePart(v GetRangePart) {
-	if r != nil {
-		r.rngPart = v
-	}
+	r.rngPart = v
 }
 
 func (r *GetRangeResponse) GetBody() *GetRangeResponseBody {
@@ -1467,9 +1307,7 @@ func (r *GetRangeResponse) GetBody() *GetRangeResponseBody {
 }
 
 func (r *GetRangeResponse) SetBody(v *GetRangeResponseBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *GetRangeHashRequestBody) GetAddress() *refs.Address {
@@ -1481,9 +1319,7 @@ func (r *GetRangeHashRequestBody) GetAddress() *refs.Address {
 }
 
 func (r *GetRangeHashRequestBody) SetAddress(v *refs.Address) {
-	if r != nil {
-		r.addr = v
-	}
+	r.addr = v
 }
 
 func (r *GetRangeHashRequestBody) GetRanges() []Range {
@@ -1495,9 +1331,7 @@ func (r *GetRangeHashRequestBody) GetRanges() []Range {
 }
 
 func (r *GetRangeHashRequestBody) SetRanges(v []Range) {
-	if r != nil {
-		r.rngs = v
-	}
+	r.rngs = v
 }
 
 func (r *GetRangeHashRequestBody) GetSalt() []byte {
@@ -1509,9 +1343,7 @@ func (r *GetRangeHashRequestBody) GetSalt() []byte {
 }
 
 func (r *GetRangeHashRequestBody) SetSalt(v []byte) {
-	if r != nil {
-		r.salt = v
-	}
+	r.salt = v
 }
 
 func (r *GetRangeHashRequestBody) GetType() refs.ChecksumType {
@@ -1523,9 +1355,7 @@ func (r *GetRangeHashRequestBody) GetType() refs.ChecksumType {
 }
 
 func (r *GetRangeHashRequestBody) SetType(v refs.ChecksumType) {
-	if r != nil {
-		r.typ = v
-	}
+	r.typ = v
 }
 
 func (r *GetRangeHashRequest) GetBody() *GetRangeHashRequestBody {
@@ -1537,9 +1367,7 @@ func (r *GetRangeHashRequest) GetBody() *GetRangeHashRequestBody {
 }
 
 func (r *GetRangeHashRequest) SetBody(v *GetRangeHashRequestBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
 
 func (r *GetRangeHashResponseBody) GetType() refs.ChecksumType {
@@ -1551,9 +1379,7 @@ func (r *GetRangeHashResponseBody) GetType() refs.ChecksumType {
 }
 
 func (r *GetRangeHashResponseBody) SetType(v refs.ChecksumType) {
-	if r != nil {
-		r.typ = v
-	}
+	r.typ = v
 }
 
 func (r *GetRangeHashResponseBody) GetHashList() [][]byte {
@@ -1565,9 +1391,7 @@ func (r *GetRangeHashResponseBody) GetHashList() [][]byte {
 }
 
 func (r *GetRangeHashResponseBody) SetHashList(v [][]byte) {
-	if r != nil {
-		r.hashList = v
-	}
+	r.hashList = v
 }
 
 func (r *GetRangeHashResponse) GetBody() *GetRangeHashResponseBody {
@@ -1579,7 +1403,5 @@ func (r *GetRangeHashResponse) GetBody() *GetRangeHashResponseBody {
 }
 
 func (r *GetRangeHashResponse) SetBody(v *GetRangeHashResponseBody) {
-	if r != nil {
-		r.body = v
-	}
+	r.body = v
 }
diff --git a/refs/grpc/types.go b/refs/grpc/types.go
index e191656d..0cf73687 100644
--- a/refs/grpc/types.go
+++ b/refs/grpc/types.go
@@ -2,100 +2,72 @@ package refs
 
 // SetValue sets container identifier in a binary format.
 func (x *ContainerID) SetValue(v []byte) {
-	if x != nil {
-		x.Value = v
-	}
+	x.Value = v
 }
 
 // SetValue sets object identifier in a binary format.
 func (x *ObjectID) SetValue(v []byte) {
-	if x != nil {
-		x.Value = v
-	}
+	x.Value = v
 }
 
 // SetValue sets owner identifier in a binary format.
 func (x *OwnerID) SetValue(v []byte) {
-	if x != nil {
-		x.Value = v
-	}
+	x.Value = v
 }
 
 // SetContainerId sets container identifier of the address.
 func (x *Address) SetContainerId(v *ContainerID) {
-	if x != nil {
-		x.ContainerId = v
-	}
+	x.ContainerId = v
 }
 
 // SetObjectId sets object identifier of the address.
 func (x *Address) SetObjectId(v *ObjectID) {
-	if x != nil {
-		x.ObjectId = v
-	}
+	x.ObjectId = v
 }
 
 // SetChecksumType in generic checksum structure.
 func (x *Checksum) SetChecksumType(v ChecksumType) {
-	if x != nil {
-		x.Type = v
-	}
+	x.Type = v
 }
 
 // SetSum in generic checksum structure.
 func (x *Checksum) SetSum(v []byte) {
-	if x != nil {
-		x.Sum = v
-	}
+	x.Sum = v
 }
 
 // SetMajor sets major version number.
 func (x *Version) SetMajor(v uint32) {
-	if x != nil {
-		x.Major = v
-	}
+	x.Major = v
 }
 
 // SetMinor sets minor version number.
 func (x *Version) SetMinor(v uint32) {
-	if x != nil {
-		x.Minor = v
-	}
+	x.Minor = v
 }
 
 // SetKey sets public key in a binary format.
 func (x *Signature) SetKey(v []byte) {
-	if x != nil {
-		x.Key = v
-	}
+	x.Key = v
 }
 
 // SetSign sets signature.
 func (x *Signature) SetSign(v []byte) {
-	if x != nil {
-		x.Sign = v
-	}
+	x.Sign = v
 }
 
 // SetScheme sets signature scheme.
 func (x *Signature) SetScheme(s SignatureScheme) {
-	if x != nil {
-		x.Scheme = s
-	}
+	x.Scheme = s
 }
 
 // SetKey sets public key in a binary format.
 func (x *SignatureRFC6979) SetKey(v []byte) {
-	if x != nil {
-		x.Key = v
-	}
+	x.Key = v
 }
 
 // SetSign sets signature.
 func (x *SignatureRFC6979) SetSign(v []byte) {
-	if x != nil {
-		x.Sign = v
-	}
+	x.Sign = v
 }
 
 // FromString parses SignatureScheme from a string representation,
@@ -126,7 +98,5 @@ func (x *ChecksumType) FromString(s string) bool {
 
 // SetValue sets subnet identifier in a base-10 integer format.
 func (x *SubnetID) SetValue(v uint32) {
-	if x != nil {
-		x.Value = v
-	}
+	x.Value = v
 }
diff --git a/refs/types.go b/refs/types.go
index 7d89881c..025761d4 100644
--- a/refs/types.go
+++ b/refs/types.go
@@ -67,9 +67,7 @@ func (o *OwnerID) GetValue() []byte {
 }
 
 func (o *OwnerID) SetValue(v []byte) {
-	if o != nil {
-		o.val = v
-	}
+	o.val = v
 }
 
 func (c *ContainerID) GetValue() []byte {
@@ -81,9 +79,7 @@ func (c *ContainerID) GetValue() []byte {
 }
 
 func (c *ContainerID) SetValue(v []byte) {
-	if c != nil {
-		c.val = v
-	}
+	c.val = v
 }
 
 func (o *ObjectID) GetValue() []byte {
@@ -95,9 +91,7 @@ func (o *ObjectID) GetValue() []byte {
 }
 
 func (o *ObjectID) SetValue(v []byte) {
-	if o != nil {
-		o.val = v
-	}
+	o.val = v
 }
 
 func (a *Address) GetContainerID() *ContainerID {
@@ -109,9 +103,7 @@ func (a *Address) GetContainerID() *ContainerID {
 }
 
 func (a *Address) SetContainerID(v *ContainerID) {
-	if a != nil {
-		a.cid = v
-	}
+	a.cid = v
 }
 
 func (a *Address) GetObjectID() *ObjectID {
@@ -123,9 +115,7 @@ func (a *Address) GetObjectID() *ObjectID {
 }
 
 func (a *Address) SetObjectID(v *ObjectID) {
-	if a != nil {
-		a.oid = v
-	}
+	a.oid = v
 }
 
 func (c *Checksum) GetType() ChecksumType {
@@ -137,9 +127,7 @@ func (c *Checksum) GetType() ChecksumType {
 }
 
 func (c *Checksum) SetType(v ChecksumType) {
-	if c != nil {
-		c.typ = v
-	}
+	c.typ = v
 }
 
 func (c *Checksum) GetSum() []byte {
@@ -151,9 +139,7 @@ func (c *Checksum) GetSum() []byte {
 }
 
 func (c *Checksum) SetSum(v []byte) {
-	if c != nil {
-		c.sum = v
-	}
+	c.sum = v
 }
 
 func (s *Signature) GetKey() []byte {
@@ -165,9 +151,7 @@ func (s *Signature) GetKey() []byte {
 }
 
 func (s *Signature) SetKey(v []byte) {
-	if s != nil {
-		s.key = v
-	}
+	s.key = v
 }
 
 func (s *Signature) GetSign() []byte {
@@ -179,9 +163,7 @@ func (s *Signature) GetSign() []byte {
 }
 
 func (s *Signature) SetSign(v []byte) {
-	if s != nil {
-		s.sign = v
-	}
+	s.sign = v
 }
 
 func (s *Signature) GetScheme() SignatureScheme {
@@ -192,15 +174,11 @@ func (s *Signature) GetScheme() SignatureScheme {
 }
 
 func (s *Signature) SetScheme(scheme SignatureScheme) {
-	if s != nil {
-		s.scheme = scheme
-	}
+	s.scheme = scheme
 }
 
 func (s *SubnetID) SetValue(id uint32) {
-	if s != nil {
-		s.value = id
-	}
+	s.value = id
 }
 
 func (s *SubnetID) GetValue() uint32 {
@@ -258,9 +236,7 @@ func (v *Version) GetMajor() uint32 {
 }
 
 func (v *Version) SetMajor(val uint32) {
-	if v != nil {
-		v.major = val
-	}
+	v.major = val
 }
 
 func (v *Version) GetMinor() uint32 {
@@ -272,7 +248,5 @@ func (v *Version) GetMinor() uint32 {
 }
 
 func (v *Version) SetMinor(val uint32) {
-	if v != nil {
-		v.minor = val
-	}
+	v.minor = val
 }
diff --git a/reputation/grpc/service.go b/reputation/grpc/service.go
index b48a275f..519c2dfb 100644
--- a/reputation/grpc/service.go
+++ b/reputation/grpc/service.go
@@ -6,119 +6,85 @@ import (
 
 // SetEpoch sets epoch in which the trust was assessed.
 func (x *AnnounceLocalTrustRequest_Body) SetEpoch(v uint64) {
-	if x != nil {
-		x.Epoch = v
-	}
+	x.Epoch = v
 }
 
 // SetTrusts sets list of normalized trust values.
 func (x *AnnounceLocalTrustRequest_Body) SetTrusts(v []*Trust) {
-	if x != nil {
-		x.Trusts = v
-	}
+	x.Trusts = v
 }
 
 // SetBody sets body of the request.
 func (x *AnnounceLocalTrustRequest) SetBody(v *AnnounceLocalTrustRequest_Body) {
-	if x != nil {
-		x.Body = v
-	}
+	x.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (x *AnnounceLocalTrustRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if x != nil {
-		x.MetaHeader = v
-	}
+	x.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (x *AnnounceLocalTrustRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if x != nil {
-		x.VerifyHeader = v
-	}
+	x.VerifyHeader = v
 }
 
 // SetBody sets body of the response.
 func (x *AnnounceLocalTrustResponse) SetBody(v *AnnounceLocalTrustResponse_Body) {
-	if x != nil {
-		x.Body = v
-	}
+	x.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (x *AnnounceLocalTrustResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if x != nil {
-		x.MetaHeader = v
-	}
+	x.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (x *AnnounceLocalTrustResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if x != nil {
-		x.VerifyHeader = v
-	}
+	x.VerifyHeader = v
 }
 
 // SetEpoch sets epoch in which the intermediate trust was assessed.
 func (x *AnnounceIntermediateResultRequest_Body) SetEpoch(v uint64) {
-	if x != nil {
-		x.Epoch = v
-	}
+	x.Epoch = v
 }
 
 // SetIteration sets sequence number of the iteration.
 func (x *AnnounceIntermediateResultRequest_Body) SetIteration(v uint32) {
-	if x != nil {
-		x.Iteration = v
-	}
+	x.Iteration = v
 }
 
 // SetTrust sets current global trust value.
 func (x *AnnounceIntermediateResultRequest_Body) SetTrust(v *PeerToPeerTrust) {
-	if x != nil {
-		x.Trust = v
-	}
+	x.Trust = v
 }
 
 // SetBody sets body of the request.
 func (x *AnnounceIntermediateResultRequest) SetBody(v *AnnounceIntermediateResultRequest_Body) {
-	if x != nil {
-		x.Body = v
-	}
+	x.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (x *AnnounceIntermediateResultRequest) SetMetaHeader(v *session.RequestMetaHeader) {
-	if x != nil {
-		x.MetaHeader = v
-	}
+	x.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (x *AnnounceIntermediateResultRequest) SetVerifyHeader(v *session.RequestVerificationHeader) {
-	if x != nil {
-		x.VerifyHeader = v
-	}
+	x.VerifyHeader = v
 }
 
 // SetBody sets body of the response.
 func (x *AnnounceIntermediateResultResponse) SetBody(v *AnnounceIntermediateResultResponse_Body) {
-	if x != nil {
-		x.Body = v
-	}
+	x.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (x *AnnounceIntermediateResultResponse) SetMetaHeader(v *session.ResponseMetaHeader) {
-	if x != nil {
-		x.MetaHeader = v
-	}
+	x.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (x *AnnounceIntermediateResultResponse) SetVerifyHeader(v *session.ResponseVerificationHeader) {
-	if x != nil {
-		x.VerifyHeader = v
-	}
+	x.VerifyHeader = v
 }
diff --git a/reputation/grpc/types.go b/reputation/grpc/types.go
index 86fb05f4..14848d3e 100644
--- a/reputation/grpc/types.go
+++ b/reputation/grpc/types.go
@@ -6,70 +6,50 @@ import (
 
 // SetPublicKey sets binary public key of ID.
 func (x *PeerID) SetPublicKey(v []byte) {
-	if x != nil {
-		x.PublicKey = v
-	}
+	x.PublicKey = v
 }
 
 // SetPeer sets trusted peer's ID.
 func (x *Trust) SetPeer(v *PeerID) {
-	if x != nil {
-		x.Peer = v
-	}
+	x.Peer = v
 }
 
 // SetValue sets trust value.
 func (x *Trust) SetValue(v float64) {
-	if x != nil {
-		x.Value = v
-	}
+	x.Value = v
 }
 
 // SetTrustingPeer sets trusting peer ID.
 func (x *PeerToPeerTrust) SetTrustingPeer(v *PeerID) {
-	if x != nil {
-		x.TrustingPeer = v
-	}
+	x.TrustingPeer = v
 }
 
 // SetTrust sets trust value of trusting peer to the trusted one.
 func (x *PeerToPeerTrust) SetTrust(v *Trust) {
-	if x != nil {
-		x.Trust = v
-	}
+	x.Trust = v
 }
 
 // SetManager sets manager ID.
 func (x *GlobalTrust_Body) SetManager(v *PeerID) {
-	if x != nil {
-		x.Manager = v
-	}
+	x.Manager = v
 }
 
 // SetTrust sets global trust value.
 func (x *GlobalTrust_Body) SetTrust(v *Trust) {
-	if x != nil {
-		x.Trust = v
-	}
+	x.Trust = v
 }
 
 // SetVersion sets message format version.
 func (x *GlobalTrust) SetVersion(v *refs.Version) {
-	if x != nil {
-		x.Version = v
-	}
+	x.Version = v
 }
 
 // SetBody sets message body.
 func (x *GlobalTrust) SetBody(v *GlobalTrust_Body) {
-	if x != nil {
-		x.Body = v
-	}
+	x.Body = v
 }
 
 // SetSignature sets body signature.
 func (x *GlobalTrust) SetSignature(v *refs.Signature) {
-	if x != nil {
-		x.Signature = v
-	}
+	x.Signature = v
 }
diff --git a/reputation/types.go b/reputation/types.go
index 5ccb2030..f058efc9 100644
--- a/reputation/types.go
+++ b/reputation/types.go
@@ -22,9 +22,7 @@ func (x *PeerID) GetPublicKey() []byte {
 
 // SetPublicKey sets peer's binary public key of ID.
 func (x *PeerID) SetPublicKey(v []byte) {
-	if x != nil {
-		x.publicKey = v
-	}
+	x.publicKey = v
 }
 
 // Trust represents reputation.Trust message
@@ -46,9 +44,7 @@ func (x *Trust) GetPeer() *PeerID {
 
 // SetPeer sets trusted peer's ID.
 func (x *Trust) SetPeer(v *PeerID) {
-	if x != nil {
-		x.peer = v
-	}
+	x.peer = v
 }
 
 // GetValue returns trust value.
@@ -62,9 +58,7 @@ func (x *Trust) GetValue() float64 {
 
 // SetValue sets trust value.
 func (x *Trust) SetValue(v float64) {
-	if x != nil {
-		x.val = v
-	}
+	x.val = v
 }
 
 // PeerToPeerTrust represents reputation.PeerToPeerTrust message
@@ -86,9 +80,7 @@ func (x *PeerToPeerTrust) GetTrustingPeer() *PeerID {
 
 // SetTrustingPeer sets trusting peer ID.
 func (x *PeerToPeerTrust) SetTrustingPeer(v *PeerID) {
-	if x != nil {
-		x.trusting = v
-	}
+	x.trusting = v
 }
 
 // GetTrust returns trust value of trusting peer to the trusted one.
@@ -102,9 +94,7 @@ func (x *PeerToPeerTrust) GetTrust() *Trust {
 
 // SetTrust sets trust value of trusting peer to the trusted one.
 func (x *PeerToPeerTrust) SetTrust(v *Trust) {
-	if x != nil {
-		x.trust = v
-	}
+	x.trust = v
 }
 
 // GlobalTrustBody represents reputation.GlobalTrust.Body message
@@ -126,9 +116,7 @@ func (x *GlobalTrustBody) GetManager() *PeerID {
 
 // SetManager sets node manager ID.
 func (x *GlobalTrustBody) SetManager(v *PeerID) {
-	if x != nil {
-		x.manager = v
-	}
+	x.manager = v
 }
 
 // GetTrust returns global trust value.
@@ -142,9 +130,7 @@ func (x *GlobalTrustBody) GetTrust() *Trust {
 
 // SetTrust sets global trust value.
 func (x *GlobalTrustBody) SetTrust(v *Trust) {
-	if x != nil {
-		x.trust = v
-	}
+	x.trust = v
 }
 
 // GlobalTrust represents reputation.GlobalTrust message
@@ -168,9 +154,7 @@ func (x *GlobalTrust) GetVersion() *refs.Version {
 
 // SetVersion sets message format version.
 func (x *GlobalTrust) SetVersion(v *refs.Version) {
-	if x != nil {
-		x.version = v
-	}
+	x.version = v
 }
 
 // GetBody returns message body.
@@ -184,9 +168,7 @@ func (x *GlobalTrust) GetBody() *GlobalTrustBody {
 
 // SetBody sets message body.
 func (x *GlobalTrust) SetBody(v *GlobalTrustBody) {
-	if x != nil {
-		x.body = v
-	}
+	x.body = v
 }
 
 // GetSignature returns body signature.
@@ -200,9 +182,7 @@ func (x *GlobalTrust) GetSignature() *refs.Signature {
 
 // SetSignature sets body signature.
 func (x *GlobalTrust) SetSignature(v *refs.Signature) {
-	if x != nil {
-		x.sig = v
-	}
+	x.sig = v
 }
 
 // AnnounceLocalTrustRequestBody is a structure of AnnounceLocalTrust request body.
@@ -223,9 +203,7 @@ func (x *AnnounceLocalTrustRequestBody) GetEpoch() uint64 {
 
 // SetEpoch sets epoch in which the trust was assessed.
 func (x *AnnounceLocalTrustRequestBody) SetEpoch(v uint64) {
-	if x != nil {
-		x.epoch = v
-	}
+	x.epoch = v
 }
 
 // GetTrusts returns list of normalized trust values.
@@ -239,9 +217,7 @@ func (x *AnnounceLocalTrustRequestBody) GetTrusts() []Trust {
 
 // SetTrusts sets list of normalized trust values.
 func (x *AnnounceLocalTrustRequestBody) SetTrusts(v []Trust) {
-	if x != nil {
-		x.trusts = v
-	}
+	x.trusts = v
 }
 
 // AnnounceLocalTrustResponseBody is a structure of AnnounceLocalTrust response body.
@@ -266,9 +242,7 @@ func (x *AnnounceLocalTrustRequest) GetBody() *AnnounceLocalTrustRequestBody {
 
 // SetBody sets request body.
 func (x *AnnounceLocalTrustRequest) SetBody(v *AnnounceLocalTrustRequestBody) {
-	if x != nil {
-		x.body = v
-	}
+	x.body = v
 }
 
 // AnnounceLocalTrustResponse represents reputation.AnnounceLocalTrustResponse
@@ -290,9 +264,7 @@ func (x *AnnounceLocalTrustResponse) GetBody() *AnnounceLocalTrustResponseBody {
 
 // SetBody sets response body.
 func (x *AnnounceLocalTrustResponse) SetBody(v *AnnounceLocalTrustResponseBody) {
-	if x != nil {
-		x.body = v
-	}
+	x.body = v
 }
 
 // AnnounceIntermediateResultRequestBody is a structure of AnnounceIntermediateResult request body.
@@ -315,9 +287,7 @@ func (x *AnnounceIntermediateResultRequestBody) GetEpoch() uint64 {
 
 // SetEpoch sets epoch number in which the intermediate trust was assessed.
 func (x *AnnounceIntermediateResultRequestBody) SetEpoch(v uint64) {
-	if x != nil {
-		x.epoch = v
-	}
+	x.epoch = v
 }
 
 // GetIteration returns sequence number of the iteration.
@@ -331,9 +301,7 @@ func (x *AnnounceIntermediateResultRequestBody) GetIteration() uint32 {
 
 // SetIteration sets sequence number of the iteration.
 func (x *AnnounceIntermediateResultRequestBody) SetIteration(v uint32) {
-	if x != nil {
-		x.iter = v
-	}
+	x.iter = v
 }
 
 // GetTrust returns current global trust value.
@@ -347,9 +315,7 @@ func (x *AnnounceIntermediateResultRequestBody) GetTrust() *PeerToPeerTrust {
 
 // SetTrust sets current global trust value.
 func (x *AnnounceIntermediateResultRequestBody) SetTrust(v *PeerToPeerTrust) {
-	if x != nil {
-		x.trust = v
-	}
+	x.trust = v
 }
 
 // AnnounceIntermediateResultResponseBody is a structure of AnnounceIntermediateResult response body.
@@ -374,9 +340,7 @@ func (x *AnnounceIntermediateResultRequest) GetBody() *AnnounceIntermediateResul
 
 // SetBody sets request body.
 func (x *AnnounceIntermediateResultRequest) SetBody(v *AnnounceIntermediateResultRequestBody) {
-	if x != nil {
-		x.body = v
-	}
+	x.body = v
 }
 
 // AnnounceIntermediateResultResponse represents reputation.AnnounceIntermediateResultResponse
@@ -398,7 +362,5 @@ func (x *AnnounceIntermediateResultResponse) GetBody() *AnnounceIntermediateResu
 
 // SetBody sets response body.
 func (x *AnnounceIntermediateResultResponse) SetBody(v *AnnounceIntermediateResultResponseBody) {
-	if x != nil {
-		x.body = v
-	}
+	x.body = v
 }
diff --git a/session/grpc/service.go b/session/grpc/service.go
index caaf7d9d..14348e47 100644
--- a/session/grpc/service.go
+++ b/session/grpc/service.go
@@ -6,70 +6,50 @@ import (
 
 // SetOwnerId sets identifier of the session initiator.
 func (m *CreateRequest_Body) SetOwnerId(v *refs.OwnerID) {
-	if m != nil {
-		m.OwnerId = v
-	}
+	m.OwnerId = v
 }
 
 // SetExpiration sets lifetime of the session.
 func (m *CreateRequest_Body) SetExpiration(v uint64) {
-	if m != nil {
-		m.Expiration = v
-	}
+	m.Expiration = v
 }
 
 // SetBody sets body of the request.
 func (m *CreateRequest) SetBody(v *CreateRequest_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the request.
 func (m *CreateRequest) SetMetaHeader(v *RequestMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the request.
 func (m *CreateRequest) SetVerifyHeader(v *RequestVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
 
 // SetId sets identifier of the session token.
 func (m *CreateResponse_Body) SetId(v []byte) {
-	if m != nil {
-		m.Id = v
-	}
+	m.Id = v
 }
 
 // SetSessionKey sets session public key in a binary format.
 func (m *CreateResponse_Body) SetSessionKey(v []byte) {
-	if m != nil {
-		m.SessionKey = v
-	}
+	m.SessionKey = v
 }
 
 // SetBody sets body of the response.
 func (m *CreateResponse) SetBody(v *CreateResponse_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetMetaHeader sets meta header of the response.
 func (m *CreateResponse) SetMetaHeader(v *ResponseMetaHeader) {
-	if m != nil {
-		m.MetaHeader = v
-	}
+	m.MetaHeader = v
 }
 
 // SetVerifyHeader sets verification header of the response.
 func (m *CreateResponse) SetVerifyHeader(v *ResponseVerificationHeader) {
-	if m != nil {
-		m.VerifyHeader = v
-	}
+	m.VerifyHeader = v
 }
diff --git a/session/grpc/types.go b/session/grpc/types.go
index 484203d4..64133a8d 100644
--- a/session/grpc/types.go
+++ b/session/grpc/types.go
@@ -8,181 +8,131 @@ import (
 
 // SetKey sets key to the X-Header.
 func (m *XHeader) SetKey(v string) {
-	if m != nil {
-		m.Key = v
-	}
+	m.Key = v
 }
 
 // SetValue sets value of the X-Header.
 func (m *XHeader) SetValue(v string) {
-	if m != nil {
-		m.Value = v
-	}
+	m.Value = v
 }
 
 // SetExp sets epoch number of the token expiration.
 func (m *SessionToken_Body_TokenLifetime) SetExp(v uint64) {
-	if m != nil {
-		m.Exp = v
-	}
+	m.Exp = v
 }
 
 // SetNbf sets starting epoch number of the token.
 func (m *SessionToken_Body_TokenLifetime) SetNbf(v uint64) {
-	if m != nil {
-		m.Nbf = v
-	}
+	m.Nbf = v
 }
 
 // SetIat sets the number of the epoch in which the token was issued.
 func (m *SessionToken_Body_TokenLifetime) SetIat(v uint64) {
-	if m != nil {
-		m.Iat = v
-	}
+	m.Iat = v
 }
 
 // SetId sets identifier of the session token.
 func (m *SessionToken_Body) SetId(v []byte) {
-	if m != nil {
-		m.Id = v
-	}
+	m.Id = v
 }
 
 // SetOwnerId sets identifier of the session token owner.
 func (m *SessionToken_Body) SetOwnerId(v *refs.OwnerID) {
-	if m != nil {
-		m.OwnerId = v
-	}
+	m.OwnerId = v
 }
 
 // SetLifetime sets lifetime of the session token.
 func (m *SessionToken_Body) SetLifetime(v *SessionToken_Body_TokenLifetime) {
-	if m != nil {
-		m.Lifetime = v
-	}
+	m.Lifetime = v
 }
 
 // SetSessionKey sets public session key in a binary format.
 func (m *SessionToken_Body) SetSessionKey(v []byte) {
-	if m != nil {
-		m.SessionKey = v
-	}
+	m.SessionKey = v
 }
 
 // SetObjectAddressContext sets object context of the session token.
 func (m *SessionToken_Body) SetObjectSessionContext(v *ObjectSessionContext) {
-	if m != nil {
-		m.Context = &SessionToken_Body_Object{
-			Object: v,
-		}
+	m.Context = &SessionToken_Body_Object{
+		Object: v,
 	}
 }
 
 // SetContainerSessionContext sets container context of the session token.
 func (m *SessionToken_Body) SetContainerSessionContext(v *ContainerSessionContext) {
-	if m != nil {
-		m.Context = &SessionToken_Body_Container{
-			Container: v,
-		}
+	m.Context = &SessionToken_Body_Container{
+		Container: v,
 	}
 }
 
 // SetAddress sets address of the object related to the session.
 func (m *ObjectSessionContext) SetAddress(v *refs.Address) {
-	if m != nil {
-		m.Address = v
-	}
+	m.Address = v
 }
 
 // SetVerb sets type of request for which the token is issued.
 func (m *ObjectSessionContext) SetVerb(v ObjectSessionContext_Verb) {
-	if m != nil {
-		m.Verb = v
-	}
+	m.Verb = v
 }
 
 // SetVerb sets type of request for which the token is issued.
 func (x *ContainerSessionContext) SetVerb(v ContainerSessionContext_Verb) {
-	if x != nil {
-		x.Verb = v
-	}
+	x.Verb = v
 }
 
 // SetWildcard sets wildcard flag of the container session.
 func (x *ContainerSessionContext) SetWildcard(v bool) {
-	if x != nil {
-		x.Wildcard = v
-	}
+	x.Wildcard = v
 }
 
 // SetContainerId sets identifier of the container related to the session.
 func (x *ContainerSessionContext) SetContainerId(v *refs.ContainerID) {
-	if x != nil {
-		x.ContainerId = v
-	}
+	x.ContainerId = v
 }
 
 // SetBody sets session token body.
 func (m *SessionToken) SetBody(v *SessionToken_Body) {
-	if m != nil {
-		m.Body = v
-	}
+	m.Body = v
 }
 
 // SetSignature sets session token signature.
 func (m *SessionToken) SetSignature(v *refs.Signature) {
-	if m != nil {
-		m.Signature = v
-	}
+	m.Signature = v
 }
 
 // SetVersion sets client protocol version.
 func (m *RequestMetaHeader) SetVersion(v *refs.Version) {
-	if m != nil {
-		m.Version = v
-	}
+	m.Version = v
 }
 
 // SetEpoch sets client local epoch.
 func (m *RequestMetaHeader) SetEpoch(v uint64) {
-	if m != nil {
-		m.Epoch = v
-	}
+	m.Epoch = v
 }
 
 // SetTtl sets request TTL.
 func (m *RequestMetaHeader) SetTtl(v uint32) {
-	if m != nil {
-		m.Ttl = v
-	}
+	m.Ttl = v
 }
 
 // SetXHeaders sets request X-Headers.
 func (m *RequestMetaHeader) SetXHeaders(v []*XHeader) {
-	if m != nil {
-		m.XHeaders = v
-	}
+	m.XHeaders = v
 }
 
 // SetSessionToken sets session token of the request.
 func (m *RequestMetaHeader) SetSessionToken(v *SessionToken) {
-	if m != nil {
-		m.SessionToken = v
-	}
+	m.SessionToken = v
 }
 
 // SetBearerToken sets bearer token of the request.
 func (m *RequestMetaHeader) SetBearerToken(v *acl.BearerToken) {
-	if m != nil {
-		m.BearerToken = v
-	}
+	m.BearerToken = v
 }
 
 // SetOrigin sets origin request meta header.
 func (m *RequestMetaHeader) SetOrigin(v *RequestMetaHeader) {
-	if m != nil {
-		m.Origin = v
-	}
+	m.Origin = v
 }
 
 // GetNetworkMagic returns NeoFS network magic.
@@ -196,107 +146,77 @@ func (m *RequestMetaHeader) GetNetworkMagic() uint64 {
 
 // SetNetworkMagic sets NeoFS network magic.
 func (m *RequestMetaHeader) SetNetworkMagic(v uint64) {
-	if m != nil {
-		m.MagicNumber = v
-	}
+	m.MagicNumber = v
 }
 
 // SetVersion sets server protocol version.
 func (m *ResponseMetaHeader) SetVersion(v *refs.Version) {
-	if m != nil {
-		m.Version = v
-	}
+	m.Version = v
 }
 
 // SetEpoch sets server local epoch.
 func (m *ResponseMetaHeader) SetEpoch(v uint64) {
-	if m != nil {
-		m.Epoch = v
-	}
+	m.Epoch = v
 }
 
 // SetTtl sets response TTL.
 func (m *ResponseMetaHeader) SetTtl(v uint32) {
-	if m != nil {
-		m.Ttl = v
-	}
+	m.Ttl = v
 }
 
 // SetXHeaders sets response X-Headers.
 func (m *ResponseMetaHeader) SetXHeaders(v []*XHeader) {
-	if m != nil {
-		m.XHeaders = v
-	}
+	m.XHeaders = v
 }
 
 // SetOrigin sets origin response meta header.
 func (m *ResponseMetaHeader) SetOrigin(v *ResponseMetaHeader) {
-	if m != nil {
-		m.Origin = v
-	}
+	m.Origin = v
 }
 
 // SetStatus sets response status.
 func (m *ResponseMetaHeader) SetStatus(v *status.Status) {
-	if m != nil {
-		m.Status = v
-	}
+	m.Status = v
 }
 
 // SetBodySignature sets signature of the request body.
 func (m *RequestVerificationHeader) SetBodySignature(v *refs.Signature) {
-	if m != nil {
-		m.BodySignature = v
-	}
+	m.BodySignature = v
 }
 
 // SetMetaSignature sets signature of the request meta.
 func (m *RequestVerificationHeader) SetMetaSignature(v *refs.Signature) {
-	if m != nil {
-		m.MetaSignature = v
-	}
+	m.MetaSignature = v
 }
 
 // SetOriginSignature sets signature of the origin verification header of the request.
 func (m *RequestVerificationHeader) SetOriginSignature(v *refs.Signature) {
-	if m != nil {
-		m.OriginSignature = v
-	}
+	m.OriginSignature = v
 }
 
 // SetOrigin sets origin verification header of the request.
 func (m *RequestVerificationHeader) SetOrigin(v *RequestVerificationHeader) {
-	if m != nil {
-		m.Origin = v
-	}
+	m.Origin = v
 }
 
 // SetBodySignature sets signature of the response body.
 func (m *ResponseVerificationHeader) SetBodySignature(v *refs.Signature) {
-	if m != nil {
-		m.BodySignature = v
-	}
+	m.BodySignature = v
 }
 
 // SetMetaSignature sets signature of the response meta.
 func (m *ResponseVerificationHeader) SetMetaSignature(v *refs.Signature) {
-	if m != nil {
-		m.MetaSignature = v
-	}
+	m.MetaSignature = v
 }
 
 // SetOriginSignature sets signature of the origin verification header of the response.
 func (m *ResponseVerificationHeader) SetOriginSignature(v *refs.Signature) {
-	if m != nil {
-		m.OriginSignature = v
-	}
+	m.OriginSignature = v
 }
 
 // SetOrigin sets origin verification header of the response.
 func (m *ResponseVerificationHeader) SetOrigin(v *ResponseVerificationHeader) {
-	if m != nil {
-		m.Origin = v
-	}
+	m.Origin = v
 }
 
 // FromString parses ObjectSessionContext_Verb from a string representation,
diff --git a/session/types.go b/session/types.go
index 65f47285..139bf57a 100644
--- a/session/types.go
+++ b/session/types.go
@@ -144,9 +144,7 @@ func (c *CreateRequestBody) GetOwnerID() *refs.OwnerID {
 }
 
 func (c *CreateRequestBody) SetOwnerID(v *refs.OwnerID) {
-	if c != nil {
-		c.ownerID = v
-	}
+	c.ownerID = v
 }
 
 func (c *CreateRequestBody) GetExpiration() uint64 {
@@ -158,9 +156,7 @@ func (c *CreateRequestBody) GetExpiration() uint64 {
 }
 
 func (c *CreateRequestBody) SetExpiration(v uint64) {
-	if c != nil {
-		c.expiration = v
-	}
+	c.expiration = v
 }
 
 func (c *CreateRequest) GetBody() *CreateRequestBody {
@@ -172,9 +168,7 @@ func (c *CreateRequest) GetBody() *CreateRequestBody {
 }
 
 func (c *CreateRequest) SetBody(v *CreateRequestBody) {
-	if c != nil {
-		c.body = v
-	}
+	c.body = v
 }
 
 func (c *CreateRequest) GetMetaHeader() *RequestMetaHeader {
@@ -186,9 +180,7 @@ func (c *CreateRequest) GetMetaHeader() *RequestMetaHeader {
 }
 
 func (c *CreateRequest) SetMetaHeader(v *RequestMetaHeader) {
-	if c != nil {
-		c.metaHeader = v
-	}
+	c.metaHeader = v
 }
 
 func (c *CreateRequest) GetVerificationHeader() *RequestVerificationHeader {
@@ -200,9 +192,7 @@ func (c *CreateRequest) GetVerificationHeader() *RequestVerificationHeader {
 }
 
 func (c *CreateRequest) SetVerificationHeader(v *RequestVerificationHeader) {
-	if c != nil {
-		c.verifyHeader = v
-	}
+	c.verifyHeader = v
 }
 
 func (c *CreateResponseBody) GetID() []byte {
@@ -214,9 +204,7 @@ func (c *CreateResponseBody) GetID() []byte {
 }
 
 func (c *CreateResponseBody) SetID(v []byte) {
-	if c != nil {
-		c.id = v
-	}
+	c.id = v
 }
 
 func (c *CreateResponseBody) GetSessionKey() []byte {
@@ -228,9 +216,7 @@ func (c *CreateResponseBody) GetSessionKey() []byte {
 }
 
 func (c *CreateResponseBody) SetSessionKey(v []byte) {
-	if c != nil {
-		c.sessionKey = v
-	}
+	c.sessionKey = v
 }
 
 func (c *CreateResponse) GetBody() *CreateResponseBody {
@@ -242,9 +228,7 @@ func (c *CreateResponse) GetBody() *CreateResponseBody {
 }
 
 func (c *CreateResponse) SetBody(v *CreateResponseBody) {
-	if c != nil {
-		c.body = v
-	}
+	c.body = v
 }
 
 func (c *CreateResponse) GetMetaHeader() *ResponseMetaHeader {
@@ -256,9 +240,7 @@ func (c *CreateResponse) GetMetaHeader() *ResponseMetaHeader {
 }
 
 func (c *CreateResponse) SetMetaHeader(v *ResponseMetaHeader) {
-	if c != nil {
-		c.metaHeader = v
-	}
+	c.metaHeader = v
 }
 
 func (c *CreateResponse) GetVerificationHeader() *ResponseVerificationHeader {
@@ -270,9 +252,7 @@ func (c *CreateResponse) GetVerificationHeader() *ResponseVerificationHeader {
 }
 
 func (c *CreateResponse) SetVerificationHeader(v *ResponseVerificationHeader) {
-	if c != nil {
-		c.verifyHeader = v
-	}
+	c.verifyHeader = v
 }
 
 func (x *XHeader) GetKey() string {
@@ -284,9 +264,7 @@ func (x *XHeader) GetKey() string {
 }
 
 func (x *XHeader) SetKey(v string) {
-	if x != nil {
-		x.key = v
-	}
+	x.key = v
 }
 
 func (x *XHeader) GetValue() string {
@@ -298,9 +276,7 @@ func (x *XHeader) GetValue() string {
 }
 
 func (x *XHeader) SetValue(v string) {
-	if x != nil {
-		x.val = v
-	}
+	x.val = v
 }
 
 func (r *RequestVerificationHeader) GetBodySignature() *refs.Signature {
@@ -312,9 +288,7 @@ func (r *RequestVerificationHeader) GetBodySignature() *refs.Signature {
 }
 
 func (r *RequestVerificationHeader) SetBodySignature(v *refs.Signature) {
-	if r != nil {
-		r.bodySig = v
-	}
+	r.bodySig = v
 }
 
 func (r *RequestVerificationHeader) GetMetaSignature() *refs.Signature {
@@ -326,9 +300,7 @@ func (r *RequestVerificationHeader) GetMetaSignature() *refs.Signature {
 }
 
 func (r *RequestVerificationHeader) SetMetaSignature(v *refs.Signature) {
-	if r != nil {
-		r.metaSig = v
-	}
+	r.metaSig = v
 }
 
 func (r *RequestVerificationHeader) GetOriginSignature() *refs.Signature {
@@ -340,9 +312,7 @@ func (r *RequestVerificationHeader) GetOriginSignature() *refs.Signature {
 }
 
 func (r *RequestVerificationHeader) SetOriginSignature(v *refs.Signature) {
-	if r != nil {
-		r.originSig = v
-	}
+	r.originSig = v
 }
 
 func (r *RequestVerificationHeader) GetOrigin() *RequestVerificationHeader {
@@ -354,9 +324,7 @@ func (r *RequestVerificationHeader) GetOrigin() *RequestVerificationHeader {
 }
 
 func (r *RequestVerificationHeader) SetOrigin(v *RequestVerificationHeader) {
-	if r != nil {
-		r.origin = v
-	}
+	r.origin = v
 }
 
 func (r *RequestMetaHeader) GetVersion() *refs.Version {
@@ -368,9 +336,7 @@ func (r *RequestMetaHeader) GetVersion() *refs.Version {
 }
 
 func (r *RequestMetaHeader) SetVersion(v *refs.Version) {
-	if r != nil {
-		r.version = v
-	}
+	r.version = v
 }
 
 func (r *RequestMetaHeader) GetTTL() uint32 {
@@ -382,9 +348,7 @@ func (r *RequestMetaHeader) GetTTL() uint32 {
 }
 
 func (r *RequestMetaHeader) SetTTL(v uint32) {
-	if r != nil {
-		r.ttl = v
-	}
+	r.ttl = v
 }
 
 func (r *RequestMetaHeader) GetEpoch() uint64 {
@@ -396,9 +360,7 @@ func (r *RequestMetaHeader) GetEpoch() uint64 {
 }
 
 func (r *RequestMetaHeader) SetEpoch(v uint64) {
-	if r != nil {
-		r.epoch = v
-	}
+	r.epoch = v
 }
 
 func (r *RequestMetaHeader) GetXHeaders() []XHeader {
@@ -410,9 +372,7 @@ func (r *RequestMetaHeader) GetXHeaders() []XHeader {
 }
 
 func (r *RequestMetaHeader) SetXHeaders(v []XHeader) {
-	if r != nil {
-		r.xHeaders = v
-	}
+	r.xHeaders = v
 }
 
 func (r *RequestMetaHeader) GetSessionToken() *Token {
@@ -424,9 +384,7 @@ func (r *RequestMetaHeader) GetSessionToken() *Token {
 }
 
 func (r *RequestMetaHeader) SetSessionToken(v *Token) {
-	if r != nil {
-		r.sessionToken = v
-	}
+	r.sessionToken = v
 }
 
 func (r *RequestMetaHeader) GetBearerToken() *acl.BearerToken {
@@ -438,9 +396,7 @@ func (r *RequestMetaHeader) GetBearerToken() *acl.BearerToken {
 }
 
 func (r *RequestMetaHeader) SetBearerToken(v *acl.BearerToken) {
-	if r != nil {
-		r.bearerToken = v
-	}
+	r.bearerToken = v
 }
 
 func (r *RequestMetaHeader) GetOrigin() *RequestMetaHeader {
@@ -452,9 +408,7 @@ func (r *RequestMetaHeader) GetOrigin() *RequestMetaHeader {
 }
 
 func (r *RequestMetaHeader) SetOrigin(v *RequestMetaHeader) {
-	if r != nil {
-		r.origin = v
-	}
+	r.origin = v
 }
 
 // GetNetworkMagic returns NeoFS network magic.
@@ -468,9 +422,7 @@ func (r *RequestMetaHeader) GetNetworkMagic() uint64 {
 
 // SetNetworkMagic sets NeoFS network magic.
 func (r *RequestMetaHeader) SetNetworkMagic(v uint64) {
-	if r != nil {
-		r.netMagic = v
-	}
+	r.netMagic = v
 }
 
 func (l *TokenLifetime) GetExp() uint64 {
@@ -482,9 +434,7 @@ func (l *TokenLifetime) GetExp() uint64 {
 }
 
 func (l *TokenLifetime) SetExp(v uint64) {
-	if l != nil {
-		l.exp = v
-	}
+	l.exp = v
 }
 
 func (l *TokenLifetime) GetNbf() uint64 {
@@ -496,9 +446,7 @@ func (l *TokenLifetime) GetNbf() uint64 {
 }
 
 func (l *TokenLifetime) SetNbf(v uint64) {
-	if l != nil {
-		l.nbf = v
-	}
+	l.nbf = v
 }
 
 func (l *TokenLifetime) GetIat() uint64 {
@@ -510,9 +458,7 @@ func (l *TokenLifetime) GetIat() uint64 {
 }
 
 func (l *TokenLifetime) SetIat(v uint64) {
-	if l != nil {
-		l.iat = v
-	}
+	l.iat = v
 }
 
 func (r *ResponseVerificationHeader) GetBodySignature() *refs.Signature {
@@ -524,9 +470,7 @@ func (r *ResponseVerificationHeader) GetBodySignature() *refs.Signature {
 }
 
 func (r *ResponseVerificationHeader) SetBodySignature(v *refs.Signature) {
-	if r != nil {
-		r.bodySig = v
-	}
+	r.bodySig = v
 }
 
 func (r *ResponseVerificationHeader) GetMetaSignature() *refs.Signature {
@@ -538,9 +482,7 @@ func (r *ResponseVerificationHeader) GetMetaSignature() *refs.Signature {
 }
 
 func (r *ResponseVerificationHeader) SetMetaSignature(v *refs.Signature) {
-	if r != nil {
-		r.metaSig = v
-	}
+	r.metaSig = v
 }
 
 func (r *ResponseVerificationHeader) GetOriginSignature() *refs.Signature {
@@ -552,9 +494,7 @@ func (r *ResponseVerificationHeader) GetOriginSignature() *refs.Signature {
 }
 
 func (r *ResponseVerificationHeader) SetOriginSignature(v *refs.Signature) {
-	if r != nil {
-		r.originSig = v
-	}
+	r.originSig = v
 }
 
 func (r *ResponseVerificationHeader) GetOrigin() *ResponseVerificationHeader {
@@ -566,9 +506,7 @@ func (r *ResponseVerificationHeader) GetOrigin() *ResponseVerificationHeader {
 }
 
 func (r *ResponseVerificationHeader) SetOrigin(v *ResponseVerificationHeader) {
-	if r != nil {
-		r.origin = v
-	}
+	r.origin = v
 }
 
 func (r *ResponseMetaHeader) GetVersion() *refs.Version {
@@ -580,9 +518,7 @@ func (r *ResponseMetaHeader) GetVersion() *refs.Version {
 }
 
 func (r *ResponseMetaHeader) SetVersion(v *refs.Version) {
-	if r != nil {
-		r.version = v
-	}
+	r.version = v
 }
 
 func (r *ResponseMetaHeader) GetTTL() uint32 {
@@ -594,9 +530,7 @@ func (r *ResponseMetaHeader) GetTTL() uint32 {
 }
 
 func (r *ResponseMetaHeader) SetTTL(v uint32) {
-	if r != nil {
-		r.ttl = v
-	}
+	r.ttl = v
 }
 
 func (r *ResponseMetaHeader) GetEpoch() uint64 {
@@ -608,9 +542,7 @@ func (r *ResponseMetaHeader) GetEpoch() uint64 {
 }
 
 func (r *ResponseMetaHeader) SetEpoch(v uint64) {
-	if r != nil {
-		r.epoch = v
-	}
+	r.epoch = v
 }
 
 func (r *ResponseMetaHeader) GetXHeaders() []XHeader {
@@ -622,9 +554,7 @@ func (r *ResponseMetaHeader) GetXHeaders() []XHeader {
 }
 
 func (r *ResponseMetaHeader) SetXHeaders(v []XHeader) {
-	if r != nil {
-		r.xHeaders = v
-	}
+	r.xHeaders = v
 }
 
 func (r *ResponseMetaHeader) GetOrigin() *ResponseMetaHeader {
@@ -636,9 +566,7 @@ func (r *ResponseMetaHeader) GetOrigin() *ResponseMetaHeader {
 }
 
 func (r *ResponseMetaHeader) SetOrigin(v *ResponseMetaHeader) {
-	if r != nil {
-		r.origin = v
-	}
+	r.origin = v
 }
 
 // GetStatus returns response status.
@@ -652,9 +580,7 @@ func (r *ResponseMetaHeader) GetStatus() *status.Status {
 
 // SetStatus sets response status.
 func (r *ResponseMetaHeader) SetStatus(v *status.Status) {
-	if r != nil {
-		r.status = v
-	}
+	r.status = v
 }
 
 // SetStatus sets status of the message which can carry ResponseMetaHeader.
@@ -685,9 +611,7 @@ func (c *ObjectSessionContext) GetVerb() ObjectSessionVerb {
 }
 
 func (c *ObjectSessionContext) SetVerb(v ObjectSessionVerb) {
-	if c != nil {
-		c.verb = v
-	}
+	c.verb = v
 }
 
 func (c *ObjectSessionContext) GetAddress() *refs.Address {
@@ -699,9 +623,7 @@ func (c *ObjectSessionContext) GetAddress() *refs.Address {
 }
 
 func (c *ObjectSessionContext) SetAddress(v *refs.Address) {
-	if c != nil {
-		c.addr = v
-	}
+	c.addr = v
 }
 
 func (t *TokenBody) GetID() []byte {
@@ -713,9 +635,7 @@ func (t *TokenBody) GetID() []byte {
 }
 
 func (t *TokenBody) SetID(v []byte) {
-	if t != nil {
-		t.id = v
-	}
+	t.id = v
 }
 
 func (t *TokenBody) GetOwnerID() *refs.OwnerID {
@@ -727,9 +647,7 @@ func (t *TokenBody) GetOwnerID() *refs.OwnerID {
 }
 
 func (t *TokenBody) SetOwnerID(v *refs.OwnerID) {
-	if t != nil {
-		t.ownerID = v
-	}
+	t.ownerID = v
 }
 
 func (t *TokenBody) GetLifetime() *TokenLifetime {
@@ -741,9 +659,7 @@ func (t *TokenBody) GetLifetime() *TokenLifetime {
 }
 
 func (t *TokenBody) SetLifetime(v *TokenLifetime) {
-	if t != nil {
-		t.lifetime = v
-	}
+	t.lifetime = v
 }
 
 func (t *TokenBody) GetSessionKey() []byte {
@@ -755,9 +671,7 @@ func (t *TokenBody) GetSessionKey() []byte {
 }
 
 func (t *TokenBody) SetSessionKey(v []byte) {
-	if t != nil {
-		t.sessionKey = v
-	}
+	t.sessionKey = v
 }
 
 func (t *TokenBody) GetContext() TokenContext {
@@ -769,9 +683,7 @@ func (t *TokenBody) GetContext() TokenContext {
 }
 
 func (t *TokenBody) SetContext(v TokenContext) {
-	if t != nil {
-		t.ctx = v
-	}
+	t.ctx = v
 }
 
 func (t *Token) GetBody() *TokenBody {
@@ -783,9 +695,7 @@ func (t *Token) GetBody() *TokenBody {
 }
 
 func (t *Token) SetBody(v *TokenBody) {
-	if t != nil {
-		t.body = v
-	}
+	t.body = v
 }
 
 func (t *Token) GetSignature() *refs.Signature {
@@ -797,9 +707,7 @@ func (t *Token) GetSignature() *refs.Signature {
 }
 
 func (t *Token) SetSignature(v *refs.Signature) {
-	if t != nil {
-		t.sig = v
-	}
+	t.sig = v
 }
 
 // ContainerSessionVerb represents NeoFS API v2
@@ -843,9 +751,7 @@ func (x *ContainerSessionContext) Verb() ContainerSessionVerb {
 
 // SetVerb sets type of request for which the token is issued.
 func (x *ContainerSessionContext) SetVerb(v ContainerSessionVerb) {
-	if x != nil {
-		x.verb = v
-	}
+	x.verb = v
 }
 
 // Wildcard returns wildcard flag of the container session.
@@ -859,9 +765,7 @@ func (x *ContainerSessionContext) Wildcard() bool {
 
 // SetWildcard sets wildcard flag of the container session.
 func (x *ContainerSessionContext) SetWildcard(v bool) {
-	if x != nil {
-		x.wildcard = v
-	}
+	x.wildcard = v
 }
 
 // ContainerID returns identifier of the container related to the session.
@@ -875,7 +779,5 @@ func (x *ContainerSessionContext) ContainerID() *refs.ContainerID {
 
 // SetContainerID sets identifier of the container related to the session.
 func (x *ContainerSessionContext) SetContainerID(v *refs.ContainerID) {
-	if x != nil {
-		x.cid = v
-	}
+	x.cid = v
 }
diff --git a/session/util.go b/session/util.go
index 5ee46d37..f39097db 100644
--- a/session/util.go
+++ b/session/util.go
@@ -23,9 +23,7 @@ func (c *RequestHeaders) GetMetaHeader() *RequestMetaHeader {
 
 // SetMetaHeader sets meta header of the request.
 func (c *RequestHeaders) SetMetaHeader(v *RequestMetaHeader) {
-	if c != nil {
-		c.metaHeader = v
-	}
+	c.metaHeader = v
 }
 
 // GetVerificationHeader returns verification header of the request.
@@ -39,9 +37,7 @@ func (c *RequestHeaders) GetVerificationHeader() *RequestVerificationHeader {
 
 // SetVerificationHeader sets verification header of the request.
 func (c *RequestHeaders) SetVerificationHeader(v *RequestVerificationHeader) {
-	if c != nil {
-		c.verifyHeader = v
-	}
+	c.verifyHeader = v
 }
 
 func (c *RequestHeaders) ToMessage(m interface {
@@ -106,9 +102,7 @@ func (c *ResponseHeaders) GetMetaHeader() *ResponseMetaHeader {
 
 // SetMetaHeader sets meta header of the response.
 func (c *ResponseHeaders) SetMetaHeader(v *ResponseMetaHeader) {
-	if c != nil {
-		c.metaHeader = v
-	}
+	c.metaHeader = v
 }
 
 // GetVerificationHeader returns verification header of the response.
@@ -122,9 +116,7 @@ func (c *ResponseHeaders) GetVerificationHeader() *ResponseVerificationHeader {
 
 // SetVerificationHeader sets verification header of the response.
 func (c *ResponseHeaders) SetVerificationHeader(v *ResponseVerificationHeader) {
-	if c != nil {
-		c.verifyHeader = v
-	}
+	c.verifyHeader = v
 }
 
 func (c *ResponseHeaders) ToMessage(m interface {
diff --git a/status/grpc/types.go b/status/grpc/types.go
index eea2c822..993f6322 100644
--- a/status/grpc/types.go
+++ b/status/grpc/types.go
@@ -2,35 +2,25 @@ package status
 
 // SetId sets identifier of the Status_Detail.
 func (x *Status_Detail) SetId(v uint32) {
-	if x != nil {
-		x.Id = v
-	}
+	x.Id = v
 }
 
 // SetValue sets value of the Status_Detail.
 func (x *Status_Detail) SetValue(v []byte) {
-	if x != nil {
-		x.Value = v
-	}
+	x.Value = v
 }
 
 // SetCode sets code of the Status.
 func (x *Status) SetCode(v uint32) {
-	if x != nil {
-		x.Code = v
-	}
+	x.Code = v
 }
 
 // SetMessage sets message about the Status.
 func (x *Status) SetMessage(v string) {
-	if x != nil {
-		x.Message = v
-	}
+	x.Message = v
 }
 
 // SetDetails sets details of the Status.
 func (x *Status) SetDetails(v []*Status_Detail) {
-	if x != nil {
-		x.Details = v
-	}
+	x.Details = v
 }
diff --git a/status/types.go b/status/types.go
index 8bcb3af2..2259b3a2 100644
--- a/status/types.go
+++ b/status/types.go
@@ -18,9 +18,7 @@ func (x *Detail) ID() uint32 {
 
 // SetID sets identifier of the Detail.
 func (x *Detail) SetID(id uint32) {
-	if x != nil {
-		x.id = id
-	}
+	x.id = id
 }
 
 // Value returns value of the Detail.
@@ -34,9 +32,7 @@ func (x *Detail) Value() []byte {
 
 // SetValue sets value of the Detail.
 func (x *Detail) SetValue(val []byte) {
-	if x != nil {
-		x.val = val
-	}
+	x.val = val
 }
 
 // Code represents NeoFS API V2-compatible status code.
@@ -67,9 +63,7 @@ func (x *Status) Code() Code {
 
 // SetCode sets code of the Status.
 func (x *Status) SetCode(code Code) {
-	if x != nil {
-		x.code = code
-	}
+	x.code = code
 }
 
 // Message sets message of the Status.
@@ -83,9 +77,7 @@ func (x *Status) Message() string {
 
 // SetMessage sets message of the Status.
 func (x *Status) SetMessage(msg string) {
-	if x != nil {
-		x.msg = msg
-	}
+	x.msg = msg
 }
 
 // NumberOfParameters returns number of network parameters.
diff --git a/storagegroup/grpc/types.go b/storagegroup/grpc/types.go
index 5bba1b15..1c7a8a80 100644
--- a/storagegroup/grpc/types.go
+++ b/storagegroup/grpc/types.go
@@ -6,28 +6,20 @@ import (
 
 // SetValidationDataSize sets the total size of the payloads of the storage group.
 func (m *StorageGroup) SetValidationDataSize(v uint64) {
-	if m != nil {
-		m.ValidationDataSize = v
-	}
+	m.ValidationDataSize = v
 }
 
 // SetValidationHash sets total homomorphic hash of the storage group payloads.
 func (m *StorageGroup) SetValidationHash(v *refs.Checksum) {
-	if m != nil {
-		m.ValidationHash = v
-	}
+	m.ValidationHash = v
 }
 
 // SetExpirationEpoch sets number of the last epoch of the storage group lifetime.
 func (m *StorageGroup) SetExpirationEpoch(v uint64) {
-	if m != nil {
-		m.ExpirationEpoch = v
-	}
+	m.ExpirationEpoch = v
 }
 
 // SetMembers sets list of the identifiers of the storage group members.
 func (m *StorageGroup) SetMembers(v []*refs.ObjectID) {
-	if m != nil {
-		m.Members = v
-	}
+	m.Members = v
 }
diff --git a/storagegroup/types.go b/storagegroup/types.go
index 38f66f6c..a1926c79 100644
--- a/storagegroup/types.go
+++ b/storagegroup/types.go
@@ -27,9 +27,7 @@ func (s *StorageGroup) GetValidationDataSize() uint64 {
 
 // SetValidationDataSize into unified storage group structure.
 func (s *StorageGroup) SetValidationDataSize(v uint64) {
-	if s != nil {
-		s.size = v
-	}
+	s.size = v
 }
 
 // GetValidationHash of unified storage group structure.
@@ -43,9 +41,7 @@ func (s *StorageGroup) GetValidationHash() *refs.Checksum {
 
 // SetValidationHash into unified storage group structure.
 func (s *StorageGroup) SetValidationHash(v *refs.Checksum) {
-	if s != nil {
-		s.hash = v
-	}
+	s.hash = v
 }
 
 // GetExpirationEpoch of unified storage group structure.
@@ -59,9 +55,7 @@ func (s *StorageGroup) GetExpirationEpoch() uint64 {
 
 // SetExpirationEpoch into unified storage group structure.
 func (s *StorageGroup) SetExpirationEpoch(v uint64) {
-	if s != nil {
-		s.exp = v
-	}
+	s.exp = v
 }
 
 // GetMembers of unified storage group structure. Members are objects of
@@ -77,7 +71,5 @@ func (s *StorageGroup) GetMembers() []refs.ObjectID {
 // SetMembers into unified storage group structure. Members are objects of
 // storage group.
 func (s *StorageGroup) SetMembers(v []refs.ObjectID) {
-	if s != nil {
-		s.members = v
-	}
+	s.members = v
 }
diff --git a/subnet/grpc/types.go b/subnet/grpc/types.go
index 60ccf36d..58a72683 100644
--- a/subnet/grpc/types.go
+++ b/subnet/grpc/types.go
@@ -6,14 +6,10 @@ import (
 
 // SetID returns identifier of the subnet. Nil arg is equivalent to zero subnet ID.
 func (x *SubnetInfo) SetID(id *refs.SubnetID) {
-	if x != nil {
-		x.Id = id
-	}
+	x.Id = id
 }
 
 // SetOwner sets subnet owner's ID in NeoFS system.
 func (x *SubnetInfo) SetOwner(id *refs.OwnerID) {
-	if x != nil {
-		x.Owner = id
-	}
+	x.Owner = id
 }
diff --git a/tombstone/grpc/types.go b/tombstone/grpc/types.go
index 17fe9db6..aace76db 100644
--- a/tombstone/grpc/types.go
+++ b/tombstone/grpc/types.go
@@ -6,21 +6,15 @@ import (
 
 // SetExpirationEpoch sets number of tombstone expiration epoch.
 func (x *Tombstone) SetExpirationEpoch(v uint64) {
-	if x != nil {
-		x.ExpirationEpoch = v
-	}
+	x.ExpirationEpoch = v
 }
 
 // SetSplitId sets identifier of split object hierarchy.
 func (x *Tombstone) SetSplitId(v []byte) {
-	if x != nil {
-		x.SplitId = v
-	}
+	x.SplitId = v
 }
 
 // SetMembers sets list of objects to be deleted.
 func (x *Tombstone) SetMembers(v []*refs.ObjectID) {
-	if x != nil {
-		x.Members = v
-	}
+	x.Members = v
 }
diff --git a/tombstone/types.go b/tombstone/types.go
index 6cce852c..d04935d6 100644
--- a/tombstone/types.go
+++ b/tombstone/types.go
@@ -25,9 +25,7 @@ func (s *Tombstone) GetExpirationEpoch() uint64 {
 
 // SetExpirationEpoch sets number of tombstone expiration epoch.
 func (s *Tombstone) SetExpirationEpoch(v uint64) {
-	if s != nil {
-		s.exp = v
-	}
+	s.exp = v
 }
 
 // GetSplitID returns identifier of split object hierarchy.
@@ -41,9 +39,7 @@ func (s *Tombstone) GetSplitID() []byte {
 
 // SetSplitID sets identifier of split object hierarchy.
 func (s *Tombstone) SetSplitID(v []byte) {
-	if s != nil {
-		s.splitID = v
-	}
+	s.splitID = v
 }
 
 // GetMembers returns list of objects to be deleted.
@@ -57,7 +53,5 @@ func (s *Tombstone) GetMembers() []refs.ObjectID {
 
 // SetMembers sets list of objects to be deleted.
 func (s *Tombstone) SetMembers(v []refs.ObjectID) {
-	if s != nil {
-		s.members = v
-	}
+	s.members = v
 }