the name 'test_user_set' is not defined ，but is defined globe？

[arnold-em]

multiprocessing.pool.RemoteTraceback:
"""
Traceback (most recent call last):
File "D:\ProgramData\Anaconda3\envs\hakg\lib\multiprocessing\pool.py", line 125, in worker
result = (True, func(*args, **kwds))
File "D:\ProgramData\Anaconda3\envs\hakg\lib\multiprocessing\pool.py", line 48, in mapstar
return list(map(*args))
File "D:\download\HAKG-main\HAKG-main\utils\evaluate.py", line 92, in test_one_user
user_pos_test = test_user_set[u]
NameError: name 'test_user_set' is not defined
"""

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "main.py", line 123, in
ret = test(model, user_dict, n_params)
File "D:\download\HAKG-main\HAKG-main\utils\evaluate.py", line 168, in test
batch_result = pool.map(test_one_user, user_batch_rating_uid)
File "D:\ProgramData\Anaconda3\envs\hakg\lib\multiprocessing\pool.py", line 364, in map
return self._map_async(func, iterable, mapstar, chunksize).get()
File "D:\ProgramData\Anaconda3\envs\hakg\lib\multiprocessing\pool.py", line 771, in get
raise self._value
NameError: name 'test_user_set' is not defined