code: def func(self):
      raise NotImplementedError()
  
imports: import abc
  import unittest.mock
  from torch.distributed.elastic.metrics.api import MetricData, MetricHandler, MetricStream, _get_metric_name, prof
  from torch.testing._internal.common_utils import run_tests, TestCase
label_desc: Use image node_id 1 for calling the Parent obj's underlying member method code with example usage: obj.func() without return types