assert points[0] == self or points[0][0] == self
copy = gr.copy(self._hb.input_signature().sizeof_stream_item(0))
handler = self._handler_factory(copy.set_enabled)
assert points[0] == self or points[0][0] == self
copy = gr.copy(self._hb.input_signature().sizeof_stream_item(0))
handler = self._handler_factory(copy.set_enabled)