code: func (g *Driver) SetGroveMode(port Grove, mode GroveMode) error {
  	return g.writeBytes([]byte{
  		goPiGo3Address,
  		SET_GROVE_MODE,
  		byte(port),
  		byte(mode),
  	})
  }
docs: // SetGroveMode sets the mode a given pin/port of the grove connector.