@classmethod
def verify_vote_signature(cls, vote):
    if (vote['node_pubkey'] == 'invalid sig'):
        return False
    if (vote['node_pubkey'] == 'value error'):
        raise ValueError()
    return True
@classmethod
def verify_vote_signature(cls, vote):
    if (vote['node_pubkey'] == 'invalid sig'):
        return False
    if (vote['node_pubkey'] == 'value error'):
        raise ValueError()
    return True