code: def _hear_ghost(self):
      for ghost in self.internal_state.ghosts:
          if (
              manhattan_distance(
                  ghost.pos, self.internal_state.agent_pos
              )
              <= self.board["_hear_range"]
          ):
              return True
      return False
  
imports: import logging
  from typing import NamedTuple
  import numpy
  from gym import Env
  from gym.spaces import Box, Discrete
label_desc: Use image node_id 11 for calling the PocManEnv obj's underlying member method code with example usage: obj._hear_ghost() and returns: False, True