Perform HEAD request on a specified object in the container.

        :param uri: ``str``
        :param headers: ``dict``

def _deleter(self, uri, headers):
        """Perform HEAD request on a specified object in the container.

        :param uri: ``str``
        :param headers: ``dict``
        """

        # perform Object HEAD request
        resp = self.http.delete(url=uri, headers=headers)
        self._resp_exception(resp=resp)
        return resp