code: func MockRecv(mock *MockBlocksDeliverer) (*orderer.DeliverResponse, error) {
  	pos := mock.Pos
  
  	// Advance position for the next call
  	mock.Pos++
  	return &orderer.DeliverResponse{
  		Type: &orderer.DeliverResponse_Block{
  			Block: &common.Block{
  				Header: &common.BlockHeader{
  					Number:       pos,
  					DataHash:     []byte{},
  					PreviousHash: []byte{},
  				},
  				Data: &common.BlockData{
  					Data: [][]byte{},
  				},
  			}},
  	}, nil
  }
docs: // MockRecv mock for the Recv function