code: def _get_time_saved(self, api_label):
      return metrics.GetTrainingTimeSaved(api_label=api_label)
  
file_path: tensorflow/tensorflow/python/checkpoint/checkpoint_metrics_test.py
imports: import os
  import time
  from tensorflow.core.framework import summary_pb2
  from tensorflow.python.checkpoint import checkpoint
  from tensorflow.python.eager import context
  from tensorflow.python.ops import variables
  from tensorflow.python.platform import test
  from tensorflow.python.saved_model.pywrap_saved_model import metrics
label_desc: Use image node_id 3 for calling the CheckpointMetricTests obj's underlying member method code with example usage: obj._get_time_saved(api_label) and returns: metrics