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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def hash_starts_numeric(records):
 """ Very useful function that only accepts records with a numeric start to their sha-1 hash. """

    for record in records:
        seq_hash = hashlib.sha1(str(record.seq)).hexdigest()
        if seq_hash[0].isdigit():
            yield record