code: def _currently_registered_request_auth_provider_classes():
      return {
          provider.__class__
          for provider in mlflow.tracking.request_auth.registry._request_auth_provider_registry
      }
  
file_path: mlflow/tests/tracking/request_auth/test_registry.py
imports: from importlib import reload
  from unittest import mock
  import pytest
  import mlflow.tracking.request_auth.registry
  from mlflow.tracking.request_auth.registry import RequestAuthProviderRegistry, fetch_auth
label_desc: Use image node_id 5 for calling a global function with example usage: _currently_registered_request_auth_provider_classes() and returns: unknown