How to make LightGBM to suppress output?

Question

I'm trying for a while to figure out how to "shut up" LightGBM. Especially, I want to suppress the output of LightGBM during training (the feedback on the boosting steps).

My model is:

params = {
            'objective': 'regression',
            'learning_rate' :0.9,
            'max_depth' : 1,
            'metric': 'mean_squared_error',
            'seed': 7,
            'boosting_type' : 'gbdt'
        }

gbm = lgb.train(params,
                lgb_train,
                num_boost_round=100000,
                valid_sets=lgb_eval,
                early_stopping_rounds=100)

I tried to add verbose=0 as suggested in the docs, but this does not work. https://github.com/microsoft/LightGBM/blob/master/docs/Parameters.rst

Q: Does anyone know how to suppress LightGBM output during training?