code: def save_memory(self):
      save_data = [
          self.obs,
          self.reward,
          self.action,
          self.isOver,
          self._curr_size,
          self._curr_pos,
          self._context,
      ]
      np.savez(self.file_path, *save_data)
  
file_path: PARL/benchmark/fluid/offline-Q-learning/replay_memory.py
imports: import numpy
  import copy
  import os
  from collections import deque, namedtuple
  from parl.utils import logger
label_desc: Use image node_id 11 for calling the ReplayMemory obj's underlying member method code with example usage: obj.save_memory() without return types