class DQN uses global variable in assert

[DIPOON]

Hello. I'm just student. I'm not good at English so Excuse me first.

In https://github.com/yandexdataschool/Practical_RL/blob/master/week04_approx_rl/homework_pytorch_main.ipynb, class DQNAgent's forward uses n_actions of global variables as following. "assert len( qvalues.shape) == 2 and qvalues.shape[0] == state_t.shape[0] and qvalues.shape[1] == n_actions" I guess assert should use class private variables assert len( qvalues.shape) == 2 and qvalues.shape[0] == state_t.shape[0] and qvalues.shape[1] == **self.**n_actions It's not important I know. Just want to check whether my thought is ok...

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