def _in_query_param(self, name, **options):
        return ('params' == options and
                name in options['params'])

    # can take in a list of dataset_objects
    # or a list of dataset_data_objects
dataset/ETHPy150Open quandl/quandl-python/quandl/model/merged_dataset.py/MergedDataset._in_query_param/operator `in` -> `==`