code: def test_default_run_context_in_context():
      assert DefaultRunContext().in_context() is True
  
imports: from unittest import mock
  import pytest
  from mlflow.entities import SourceType
  from mlflow.tracking.context.default_context import DefaultRunContext
  from mlflow.utils.mlflow_tags import MLFLOW_SOURCE_NAME, MLFLOW_SOURCE_TYPE, MLFLOW_USER
label_desc: Use image node_id 2 for calling a global function with example usage: test_default_run_context_in_context() without return types