class_docstr: Container holding a list of callbacks.
class_docstr_tok: ["Container","holding","a","list","of","callbacks","."]
code: def on_epoch_end(self, epoch, logs=None):
      logs = logs or {}
      for callback in self.callbacks:
          callback.on_epoch_end(epoch, logs)
  
imports: import time
  import datetime
  import copy
  import numpy
  from dataclasses import dataclass, field
  from typing import List, Any
  import warnings
label_desc: Use image node_id 5 for calling the CallbackContainer obj's underlying member method code with example usage: obj.on_epoch_end(epoch, logs) without return types