def check_receipts(pronac, dt):
    """
    Checks how many items are in a same receipt when payment type is check
        - is_outlier: True if there are any receipts that have more than one
        - itens_que_compartilham_comprovantes: List of items that share receipt
    """
    df = verified_repeated_receipts_for_pronac(pronac)
    comprovantes_cheque = df[df['tpFormaDePagamento'] == 1.0]

    return metric_return(comprovantes_cheque)
Checks how many items are in a same receipt when payment type is check
        - is_outlier: True if there are any receipts that have more than one
        - itens_que_compartilham_comprovantes: List of items that share receipt