rem: * we work with without_payee */
add: * we work with empty_payee */
context: void gsb_data_payee_add_transaction_to_payee ( gint transaction_number ){    struct_payee *payee;    payee = gsb_data_payee_get_structure ( gsb_data_transaction_get_party_number (transaction_number));    /* if no payee in that transaction, and it's neither a breakdown, neither a transfer,     * we work with without_payee */    if (!payee	&&	!gsb_data_transaction_get_breakdown_of_transaction (transaction_number)	&& 	!gsb_data_transaction_get_transaction_number_transfer (transaction_number))	payee = without_payee;	payee -> payee_nb_transactions ++;	payee -> payee_balance += gsb_data_transaction_get_adjusted_amount (transaction_number);}