TypeError: 'ResourceVariable' object is not callable

[YuLualxy]

Following the steps will report this error：
I1012 16:52:07.428762 14312 utils.py:38] load dataset from ./data/widerface_train_bin.tfrecord
[*] training from scratch.
Traceback (most recent call last):
File "train.py", line 125, in
app.run(main)
File "D:\Anaconda\anaconda3\envs\fuck\lib\site-packages\absl\app.py", line 308, in run
_run_main(main, args)
File "D:\Anaconda\anaconda3\envs\fuck\lib\site-packages\absl\app.py", line 254, in _run_main
sys.exit(main(argv))
File "train.py", line 103, in main
total_loss.numpy(), optimizer.lr(steps).numpy()))
TypeError: 'ResourceVariable' object is not callable