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)
Add new cables to the hub when new gearboxes are created
dataset/ETHPy150Open matt2000/becca/core/spindle.py/Spindle.add_cables