def main(_):
initialize_globals()
if not FLAGS.test_files:
log_error('You need to specify what files to use for evaluation via '
'the --test_files flag.')
sys.exit(1)
is_character_based = character_based()
study = optuna.create_study()
study.set_user_attr("is_character_based", is_character_based)
study.optimize(objective, n_jobs=1, n_trials=FLAGS.n_trials)
print('Best params: lm_alpha={} and lm_beta={} with WER={}'.format(
study.best_params['lm_alpha'], study.best_params['lm_beta'],
study.best_value))
def fail(message, code=1):
log_error(message)
sys.exit(code)