code: def accumulate(self, stats):
      self.tests_run += stats.tests_run
      self.failures += stats.failures
      self.skipped += stats.skipped
  
imports: import dataclasses
  import json
  from typing import Any
  from .utils import StrJSON, TestName, FilterTuple, format_duration, normalize_test_name, print_warning
label_desc: Use image node_id 3 for calling the TestStats obj's underlying member method code with example usage: obj.accumulate(stats) without return types