def add_cables(self, num_new_cables): 
        self.num_cables += num_new_cables
        features_shape = (self.num_cables, 1)
        self.time_since_seen = tools.pad(self.time_since_seen, features_shape,
                                val=self.INITIAL_TIME)
TODO: add docstring
dataset/ETHPy150Open matt2000/becca/core/spindle.py/Spindle.add_cables--crossover with--dataset/ETHPy150Open treasure-data/td-client-python/tdclient/database_api.py/DatabaseAPI.list_databases