code: def postinit(
          self,
          args,
          body,
          decorators=None,
          returns=None,
          type_comment_returns=None,
          type_comment_args=None,
      ):
          
          self.args = args
          self.body = body
          self.decorators = decorators
          self.returns = returns
          self.type_comment_returns = type_comment_returns
          self.type_comment_args = type_comment_args
  
          if isinstance(self.parent.frame(), ClassDef):
              self.set_local("__class__", self.parent.frame())
docs: Do some setup after initialisation.
  
          :param args: The arguments that the function takes.
          :type args: Arguments or list
  
          :param body: The contents of the function body.
          :type body: list(NodeNG)
  
          :param decorators: The decorators that are applied to this
              method or function.
          :type decorators: Decorators or None
          :params type_comment_returns:
              The return type annotation passed via a type comment.
          :params type_comment_args:
              The args type annotation passed via a type comment.