[Question]: Module Not Found Error : No module named "interbotix_xs_modules.arm"

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Question

I'm able to install the interbotix packages using the instructions here
[https://docs.trossenrobotics.com/interbotix_xsarms_docs/ros_interface/ros2/software_setup.html#interbotix-ros-packages.]
And can control the mobile_wx200 robot using the Rviz UI to go to home pose and sleep mode. However, when I run the bartender.py
I get
Traceback (most recent call last):
File "/home/krishna/Downloads/bartender.py", line 1, in
from interbotix_xs_modules.arm import InterbotixManipulatorXS
ModuleNotFoundError: No module named 'interbotix_xs_modules.arm'

Robot Model

wx200

Operating System

Ubuntu 20.04

ROS Version

ROS 1 Noetic

Additional Info

whenever we are implementing the arm it get lost connection with arm and we are unable to control the ARM with PS4 controller so it is getting problem in ARM