code: def load_operations_from_docstring(docstring):
      
      doc_data = load_yaml_from_docstring(docstring)
      return {
          key: val
          for key, val in iteritems(doc_data)
          if key in PATH_KEYS or key.startswith("x-")
      }
docs: Return a dictionary of OpenAPI operations parsed from a
      a docstring.