code: def test_metric_step_metric(mock_run, parse_records, record_q):
      run = mock_run()
      metric_1 = run.define_metric(
          "metric",
          step_metric="globalstep",
      )
      assert metric_1.step_metric == "globalstep"
  
      metric_2 = run.define_metric(
          "metric",
      )
      assert not metric_2.step_metric
  
      parsed = parse_records(record_q)
      assert len(parsed.records) == 2
      assert len(parsed.metric) == 2
  
file_path: wandb/tests/pytest_tests/unit_tests/test_wandb_define_metric.py
imports: import pytest
  import wandb
  from wandb.proto import wandb_internal_pb2
label_desc: Use image node_id 5 for calling a global function with example usage: test_metric_step_metric(mock_run, parse_records, record_q) without return types