in rocketmq/client.py [0:0]
def __init__(self, group_id, orderly=False, message_model=MessageModel.CLUSTERING):
self._handle = dll.CreatePushConsumer(_to_bytes(group_id))
if self._handle is None:
raise NullPointerException('Returned null pointer when create PushConsumer')
self._orderly = orderly
self.set_message_model(message_model)
self._callback_refs = []