def get_messages(self, **params):
        all_args = [
            "include_thread_size", "include_body",
            "body_type", "include_headers", "include_flags", "flag_seen",
            "limit", "offset"
        ]
        params = helpers.sanitize_params(params, all_args)

        return [
            Message(self, obj) for obj in self._request_uri('messages', params=params)
        ]
zero-mean, unit-variance each feature within each set
dataset/ETHPy150Open contextio/Python-ContextIO/contextio/lib/resources/folder.py/Folder.get_messages--crossover with--dataset/ETHPy150Open MicrosoftResearch/Azimuth/azimuth/features/featurization.py/normalize_feature_sets