code: def get_full_path(self, filename):
      return os.path.join(self.checkpoint_dir, filename)
  
imports: import math
  import os
  import numpy
  import torch
  import shutil
  import signal
  import torch.distributed
label_desc: Use image node_id 3 for calling the Checkpointer obj's underlying member method code with example usage: obj.get_full_path(filename) and returns: os