code: def __len__(self):
      return len(self.memory)
  
file_path: tensortrade/tensortrade/agents/replay_memory.py
imports: from deprecated import deprecated
  import random
  from collections import namedtuple
  from typing import List
label_desc: Use image node_id 6 for calling the ReplayMemory obj's underlying member method code with example usage: obj.__len__() and returns: len