Can XBee read sender's NI by Python

Hi, everyone.
I want to know sender’s NI to coordinator by python.
I have used “get_node_id” or “node_id”.But,it was failed.
Do you know that solution?
I thank you in advance for your reply.

The NI value is not included in the TX packet from the remote module. It is only provided in a Node Discovery or when setting the DL/DH values via the DN command.