code: def test_one_line_simple(self):
      docstring = """A simple one line docstring."""
      docstring_info = docstrings.parse(docstring)
      expected_docstring_info = DocstringInfo(
          summary="A simple one line docstring.",
      )
      self.assertEqual(expected_docstring_info, docstring_info)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from fire import docstrings
  from fire import testutils
label_desc: Use image node_id 1 for calling the DocstringsTest obj's underlying member method code with example usage: obj.test_one_line_simple() without return types