Return True if deck spawn pays to p2th in vout[0] and if the P2TH address
    is correct. Otherwise raises InvalidDeckSpawn.

def validate_deckspawn_p2th(provider: Provider, rawtx: dict, p2th: str) -> bool:
    '''Return True if deck spawn pays to p2th in vout[0] and if the P2TH address
    is correct. Otherwise raises InvalidDeckSpawn.
    '''

    try:
        vout = rawtx["vout"][0]["scriptPubKey"].get("addresses")[0]
    except TypeError:
        '''TypeError: 'NoneType' object is not subscriptable error on some of the deck spawns.'''
        raise InvalidDeckSpawn("Invalid Deck P2TH.")

    if not vout == p2th:
        raise InvalidDeckSpawn("InvalidDeck P2TH.")

    return True