code: def make_str_node(rawtext, app, prefixed_name, obj, parent, modname, options):
      
      text = str(obj)
      node = nodes.Text(text, rawsource=rawtext)
      return node
docs: Render a Python object to text using the repr() function.
  
      :param rawtext: Text being replaced with link node.
      :param app: Sphinx application context
      :param prefixed_name: The dotted Python name for obj.
      :param obj: The Python object to be rendered to text.
      :param parent: The parent Python object of obj.
      :param module: The name of the module containing obj.
      :param options: Options dictionary passed to role func.