@_glib_err_wrap
	def _core_notify(self, _signal=False, **kws):
		chunk = dict(**kws)
		self.line_debug.append(('rpc-child(py) >> %s', chunk))
		if self.log_pipes: log.debug(*self.line_debug[-1])
		chunk = json.dumps(chunk)
		assert '\n' not in chunk, chunk
		try:
			if _signal: os.kill(self.core_pid, self.signal)
			self.stdout.write('{}\n'.format(chunk))
		except __HOLE__: return self.loop.quit() # parent is gone, we're done too
dataset/ETHPy150Open mk-fg/pulseaudio-mixer-cli/pa-mixer-mk2.py/PAMixerDBusBridge._core_notify