def apply(self, dataset, can_fit=False):
        assert not can_fit
        dataset.X = self.block.perform(dataset.X)
Gets the OAuth authorized user and access token on callback.
dataset/ETHPy150Open lisa-lab/pylearn2/pylearn2/datasets/preprocessing.py/BlockPreprocessor.apply--crossover with--dataset/ETHPy150Open IanLewis/kay/kay/ext/gaema/auth.py/OAuthMixin.get_authenticated_user