code: def __str__(self):
      return "%s (%s)" % (self._secret_id, self._secrets_backend_type)
  
imports: import os
  import re
  from metaflow.exception import MetaflowException
  from metaflow.decorators import StepDecorator
  from metaflow.metaflow_config import DEFAULT_SECRETS_ROLE
  from metaflow.unbounded_foreach import UBF_CONTROL
  from typing import Any, Dict, List, Union
label_desc: Use image node_id 7 for calling the SecretSpec obj's underlying member method code with example usage: obj.__str__() and returns: unknown