class Problem:
+ # returns a nb x (L+1+L) long tensor
def generate_seq(self, nb):
pass
+ # save a file to vizualize quizzes, you can save a txt or png file
def save_quizzes(self, input, result_dir, filename_prefix, logger):
pass
+ # returns a pair (forward_tokens, backward_token)
def direction_tokens(self):
pass