code: def move_distance(self, distance_x_m, distance_y_m, distance_z_m,
                        velocity=DEFAULT):
          
  
          x = self._x + distance_x_m
          y = self._y + distance_y_m
          z = self._z + distance_z_m
  
          self.go_to(x, y, z, velocity)
docs: Move in a straight line.
          positive X is forward
          positive Y is left
          positive Z is up
  
          :param distance_x_m: The distance to travel along the X-axis (meters)
          :param distance_y_m: The distance to travel along the Y-axis (meters)
          :param distance_z_m: The distance to travel along the Z-axis (meters)
          :param velocity: the velocity of the motion (meters/second)
          :return: