code: def _int_to_pos(self, flat_position):
          
          return flat_position % self.env.action_space.screen_shape[0],\
              flat_position % self.env.action_space.screen_shape[1]
docs: Returns x, y from flat_position integer.
  
          Args:
              flat_position: flattened position integer
  
          Returns: x, y