return nil
			},
			OutCapacity: 1,
			InCapacity:  1,
		}))
	}
	register(local)
	register(remote)

	// local to remote
	testHandler := func(t *testing.T, handler HandlerID, sendReq bool) {
		remoteConn := local.Connection(remoteHost)
		const testPayload = "Hello Grid World!"

		ctx, cancel := context.WithCancel(t.Context())

	}

	dstFilePath := pathutil.Join(dstVolumeDir, dstPath)
	if err = checkPathLength(dstFilePath); err != nil {
		return err
	}
	// when skipParent is from rpc. it’s ok for not adding another rpc HandlerID like HandlerRenamePart2
	// For this case, skipParent is empty, destBaseDir is equal to dstVolumeDir, that behavior is the same as the previous one
	destBaseDir := pathutil.Join(dstVolumeDir, skipParent)