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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _handle_callback(self, data):
 """Handle lain's callback. Only used with getFileinfo so far"""


        cb_id = data.get("id")
        args = data.get("args")
        event = self.__callbacks.pop(cb_id, None)
        if not event:
            return
        if not args:
            event.put(args)
            return
        err, info = args
        if err is None:
            event.put(info)
        else:
            LOGGER.warning("Callback returned error of %s", str(err))
            event.put(err)