code: def restore(self, npy_file="./q_table.npy"):
      self.Q = np.load(npy_file)
      print(npy_file + " loaded.")
  
file_path: PARL/examples/tutorials/homework/lesson2/q_learning_frozenlake/agent.py
imports: import numpy
label_desc: Use image node_id 6 for calling the QLearningAgent obj's underlying member method code with example usage: obj.restore(npy_file) without return types