Closes associated resources of this request object.  This
        closes all file handles explicitly.  You can also use the request
        object in a with statement which will automatically close it.

        .. versionadded:: 0.9

def close(self):
        """Closes associated resources of this request object.  This
        closes all file handles explicitly.  You can also use the request
        object in a with statement which will automatically close it.

        .. versionadded:: 0.9
        """
        files = self.__dict__.get("files")
        for _key, value in iter_multi_items(files or ()):
            value.close()