Signed-off-by: Nikita Zinkevich <n.zinkevich@yadro.com>

@@ -0,0 +352,4 @@
+		return r.body
+	}
+
+	return new(HealthcheckRequestBody)

@@ -0,0 +308,4 @@
+type ApplyRequestBody struct {
+	ContainerID []byte
+	TreeID      string
+	Operation   *LogMove

@@ -0,0 +101,4 @@
+
+func GetSubTree(cli *client.Client,
+	req *tree.GetSubTreeRequest,
+	opts ...client.CallOption) (*GetSubTreeResponseReader, error) {

@@ -0,0 +1,1590 @@
+package tree

@@ -23,0 +21,4 @@
+	mu              sync.RWMutex
+	address         string
+	opts            []grpc.DialOption
+	conn            io.Closer

@@ -61,13 +71,13 @@ func (c *treeClient) redialIfNecessary(ctx context.Context) (healthHasChanged bo
 	defer c.mu.Unlock()
 
 	if c.conn == nil {

@@ -98,2 +106,2 @@
-		return nil, nil, fmt.Errorf("grpc create node tree service: %w", err)
-	}
+	cli := rpcclient.New(append(
+		rpcclient.WithNetworkURIAddress(c.address, &tls.Config{}),

@@ -365,3 +366,3 @@
 		// Return an error there to trigger retry and ignore it after,
 		// to keep compatibility with 'GetNodeByPath' implementation.
-		if inErr == nil && len(resp.GetBody().GetNodes()) == 0 {
+		if inErr == nil && len(resp.Body.Nodes) == 0 {

@@ -134,2 +126,3 @@
 
-	if c.conn == nil {
+	conn := c.client.Conn()
+	if c.client == nil || conn == nil {

@@ -445,2 +441,2 @@
-		},
-	}
+	body := new(tree.GetSubTreeRequestBody)
+	body.SetContainerID(prm.CID[:])