code: def _docstring(source):
      rst = GoogleDocstring(
          source,
          config=Config(),
          app=None,
          what="attribute",
          name="some_data",
          obj=0,
      )
      return str(rst)
  
imports: import re
  from collections import namedtuple
  from inspect import cleandoc
  from textwrap import dedent
  from unittest import mock
  import pytest
  from sphinx.ext.napoleon import Config
  from sphinx.ext.napoleon.docstring import GoogleDocstring, NumpyDocstring, _convert_numpy_type_spec, _recombine_set_tokens, _token_type, _tokenize_type_spec
  from tests.test_extensions.ext_napoleon_pep526_data_google import PEP526GoogleClass
  from tests.test_extensions.ext_napoleon_pep526_data_numpy import PEP526NumpyClass
label_desc: Use image node_id 1 for calling the TestInlineAttribute obj's underlying member method code with example usage: obj._docstring(source) and returns: str