def position_d(self):
        """
        The derivative constant for the position PID.
        """
        self._position_d, value = self.get_attr_int(self._position_d, 'hold_pid/Kd')
        return value
def position_d ( self ) : self . _position_d , value = self . get_attr_int ( self . _position_d , 'hold_pid/Kd' ) return value
The derivative constant for the position PID.