r, err := h.Call(ctx, c.connection, args)
	if err != nil {
		return false, err
	}
	defer h.PutResponse(r)
	ok = r.Code == dsync.RespOK
	switch r.Code {
	case dsync.RespLockConflict, dsync.RespLockNotFound, dsync.RespOK:
	// no error
	case dsync.RespLockNotInitialized:
		err = errLockNotInitialized
	default:

	}

	recvCfg, err := serverVerifyHandler.Call(ctx, client.gridConn, grid.NewMSS())
	if err != nil {
		return err
	}
	// We do not need the response after returning.
	defer serverVerifyHandler.PutResponse(recvCfg)

	return srcCfg.Diff(recvCfg)
}

// Stringer provides a canonicalized representation of node.
func (client *bootstrapRESTClient) String() string {
	return client.gridConn.String()
}

    if err != nil { ... }

    // Read results from the stream
    err = stream.Results(func(resp *Resp) error {
        fmt.Println("Got result", resp)
        // Return the response for reuse
		instance.PutResponse(resp)
        return nil
    })
```

There are handlers for requests with:
 * No input stream: `RegisterNoInput`.
 * No initial payload: `RegisterNoPayload`.