code: def set_checkpoint_load_function(self, fx, kwargs):
      # if we were passed in the load flag, then we call the load function as soon as it's added
      if self.call_load_checkpoint:
          fx(**kwargs)
  
      self.checkpoint_load_function = [fx, kwargs]
  
imports: import datetime
  import os
  import signal
  import sys
  import time
  import traceback
  from subprocess import call
  from .argparse_hopt import HyperOptArgumentParser
label_desc: Use image node_id 4 for calling the AbstractCluster obj's underlying member method code with example usage: obj.set_checkpoint_load_function(fx, kwargs) without return types