code: def save(self, pathname):
      other = np.array(
          [self._curr_size, self._curr_pos], dtype=np.int32
      )
      np.savez(
          pathname,
          obs=self.obs,
          action=self.action,
          reward=self.reward,
          terminal=self.terminal,
          next_obs=self.next_obs,
          other=other,
      )
  
file_path: PARL/examples/NeurIPS2019-Learn-to-Move-Challenge/replay_memory.py
imports: import numpy
  from parl.utils import logger
label_desc: Use image node_id 7 for calling the ReplayMemory obj's underlying member method code with example usage: obj.save(pathname) without return types