diff --git a/v2/object/service.go b/v2/object/service.go
index 1551aee..2bf69c8 100644
--- a/v2/object/service.go
+++ b/v2/object/service.go
@@ -2,6 +2,8 @@ package object
 
 import (
 	"context"
+
+	"github.com/nspcc-dev/neofs-api-go/v2/session"
 )
 
 type Service interface {
@@ -13,3 +15,115 @@ type Service interface {
 	GetRange(context.Context, *GetRangeRequest) (GetRangeObjectStreamer, error)
 	GetRangeHash(context.Context, *GetRangeHashRequest) (*GetRangeHashResponse, error)
 }
+
+type GetRequest struct {
+	body *GetRequestBody
+
+	metaHeader *session.RequestMetaHeader
+
+	verifyHeader *session.RequestVerificationHeader
+}
+
+type GetResponse struct {
+	body *GetResponseBody
+
+	metaHeader *session.ResponseMetaHeader
+
+	verifyHeader *session.ResponseVerificationHeader
+}
+
+type PutRequest struct {
+	body *PutRequestBody
+
+	metaHeader *session.RequestMetaHeader
+
+	verifyHeader *session.RequestVerificationHeader
+}
+
+type PutResponse struct {
+	body *PutResponseBody
+
+	metaHeader *session.ResponseMetaHeader
+
+	verifyHeader *session.ResponseVerificationHeader
+}
+
+type DeleteRequest struct {
+	body *DeleteRequestBody
+
+	metaHeader *session.RequestMetaHeader
+
+	verifyHeader *session.RequestVerificationHeader
+}
+
+type DeleteResponse struct {
+	body *DeleteResponseBody
+
+	metaHeader *session.ResponseMetaHeader
+
+	verifyHeader *session.ResponseVerificationHeader
+}
+
+type HeadRequest struct {
+	body *HeadRequestBody
+
+	metaHeader *session.RequestMetaHeader
+
+	verifyHeader *session.RequestVerificationHeader
+}
+
+type HeadResponse struct {
+	body *HeadResponseBody
+
+	metaHeader *session.ResponseMetaHeader
+
+	verifyHeader *session.ResponseVerificationHeader
+}
+
+type SearchRequest struct {
+	body *SearchRequestBody
+
+	metaHeader *session.RequestMetaHeader
+
+	verifyHeader *session.RequestVerificationHeader
+}
+
+type SearchResponse struct {
+	body *SearchResponseBody
+
+	metaHeader *session.ResponseMetaHeader
+
+	verifyHeader *session.ResponseVerificationHeader
+}
+
+type GetRangeRequest struct {
+	body *GetRangeRequestBody
+
+	metaHeader *session.RequestMetaHeader
+
+	verifyHeader *session.RequestVerificationHeader
+}
+
+type GetRangeResponse struct {
+	body *GetRangeResponseBody
+
+	metaHeader *session.ResponseMetaHeader
+
+	verifyHeader *session.ResponseVerificationHeader
+}
+
+type GetRangeHashRequest struct {
+	body *GetRangeHashRequestBody
+
+	metaHeader *session.RequestMetaHeader
+
+	verifyHeader *session.RequestVerificationHeader
+}
+
+type GetRangeHashResponse struct {
+	body *GetRangeHashResponseBody
+
+	metaHeader *session.ResponseMetaHeader
+
+	verifyHeader *session.ResponseVerificationHeader
+}
diff --git a/v2/object/types.go b/v2/object/types.go
index d1328f8..cdce248 100644
--- a/v2/object/types.go
+++ b/v2/object/types.go
@@ -73,14 +73,6 @@ type GetRequestBody struct {
 	raw bool
 }
 
-type GetRequest struct {
-	body *GetRequestBody
-
-	metaHeader *session.RequestMetaHeader
-
-	verifyHeader *session.RequestVerificationHeader
-}
-
 type GetObjectPart interface {
 	getObjectPart()
 }
@@ -101,14 +93,6 @@ type GetResponseBody struct {
 	objPart GetObjectPart
 }
 
-type GetResponse struct {
-	body *GetResponseBody
-
-	metaHeader *session.ResponseMetaHeader
-
-	verifyHeader *session.ResponseVerificationHeader
-}
-
 type PutObjectPart interface {
 	putObjectPart()
 }
@@ -131,62 +115,22 @@ type PutRequestBody struct {
 	objPart PutObjectPart
 }
 
-type PutRequest struct {
-	body *PutRequestBody
-
-	metaHeader *session.RequestMetaHeader
-
-	verifyHeader *session.RequestVerificationHeader
-}
-
 type PutResponseBody struct {
 	id *refs.ObjectID
 }
 
-type PutResponse struct {
-	body *PutResponseBody
-
-	metaHeader *session.ResponseMetaHeader
-
-	verifyHeader *session.ResponseVerificationHeader
-}
-
 type DeleteRequestBody struct {
 	addr *refs.Address
 }
 
-type DeleteRequest struct {
-	body *DeleteRequestBody
-
-	metaHeader *session.RequestMetaHeader
-
-	verifyHeader *session.RequestVerificationHeader
-}
-
 type DeleteResponseBody struct{}
 
-type DeleteResponse struct {
-	body *DeleteResponseBody
-
-	metaHeader *session.ResponseMetaHeader
-
-	verifyHeader *session.ResponseVerificationHeader
-}
-
 type HeadRequestBody struct {
 	addr *refs.Address
 
 	mainOnly, raw bool
 }
 
-type HeadRequest struct {
-	body *HeadRequestBody
-
-	metaHeader *session.RequestMetaHeader
-
-	verifyHeader *session.RequestVerificationHeader
-}
-
 type GetHeaderPart interface {
 	getHeaderPart()
 }
@@ -203,14 +147,6 @@ type HeadResponseBody struct {
 	hdrPart GetHeaderPart
 }
 
-type HeadResponse struct {
-	body *HeadResponseBody
-
-	metaHeader *session.ResponseMetaHeader
-
-	verifyHeader *session.ResponseVerificationHeader
-}
-
 type SearchFilter struct {
 	matchType MatchType
 
@@ -225,26 +161,10 @@ type SearchRequestBody struct {
 	filters []*SearchFilter
 }
 
-type SearchRequest struct {
-	body *SearchRequestBody
-
-	metaHeader *session.RequestMetaHeader
-
-	verifyHeader *session.RequestVerificationHeader
-}
-
 type SearchResponseBody struct {
 	idList []*refs.ObjectID
 }
 
-type SearchResponse struct {
-	body *SearchResponseBody
-
-	metaHeader *session.ResponseMetaHeader
-
-	verifyHeader *session.ResponseVerificationHeader
-}
-
 type Range struct {
 	off, len uint64
 }
@@ -255,26 +175,10 @@ type GetRangeRequestBody struct {
 	rng *Range
 }
 
-type GetRangeRequest struct {
-	body *GetRangeRequestBody
-
-	metaHeader *session.RequestMetaHeader
-
-	verifyHeader *session.RequestVerificationHeader
-}
-
 type GetRangeResponseBody struct {
 	chunk []byte
 }
 
-type GetRangeResponse struct {
-	body *GetRangeResponseBody
-
-	metaHeader *session.ResponseMetaHeader
-
-	verifyHeader *session.ResponseVerificationHeader
-}
-
 type GetRangeHashRequestBody struct {
 	addr *refs.Address
 
@@ -285,28 +189,12 @@ type GetRangeHashRequestBody struct {
 	typ refs.ChecksumType
 }
 
-type GetRangeHashRequest struct {
-	body *GetRangeHashRequestBody
-
-	metaHeader *session.RequestMetaHeader
-
-	verifyHeader *session.RequestVerificationHeader
-}
-
 type GetRangeHashResponseBody struct {
 	typ refs.ChecksumType
 
 	hashList [][]byte
 }
 
-type GetRangeHashResponse struct {
-	body *GetRangeHashResponseBody
-
-	metaHeader *session.ResponseMetaHeader
-
-	verifyHeader *session.ResponseVerificationHeader
-}
-
 const (
 	TypeRegular Type = iota
 	TypeTombstone