code: def test_registry_instance_defaults():
      expected_classes = {
          DefaultRunContext,
          GitRunContext,
          DatabricksNotebookRunContext,
          DatabricksJobRunContext,
          DatabricksRepoRunContext,
      }
      assert expected_classes.issubset(
          _currently_registered_run_context_provider_classes()
      )
  
file_path: mlflow/tests/tracking/context/test_registry.py
imports: from importlib import reload
  from unittest import mock
  import pytest
  import mlflow.tracking.context.registry
  from mlflow.tracking.context.databricks_job_context import DatabricksJobRunContext
  from mlflow.tracking.context.databricks_notebook_context import DatabricksNotebookRunContext
  from mlflow.tracking.context.databricks_repo_context import DatabricksRepoRunContext
  from mlflow.tracking.context.default_context import DefaultRunContext
  from mlflow.tracking.context.git_context import GitRunContext
  from mlflow.tracking.context.registry import RunContextProviderRegistry, resolve_tags
label_desc: Use image node_id 5 for calling a global function with example usage: test_registry_instance_defaults() without return types