<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def store_many_vectors(self, hash_name, bucket_keys, vs, data):
 """ Store a batch of vectors. Stores vector and JSON-serializable data in bucket with specified key. """

        if data is None:
            data = itertools.repeat(data)
        for v, k, d in zip(vs, bucket_keys, data):
            self.store_vector(hash_name, k, v, d)