Payment constructor

Payment(int amount, String transactionReference, String orderId, String paymentItem, String currencyCode, String narration, String? terminalId, String? terminalType, bool preauth,)

Implementation

Payment(this.amount, this.transactionReference, this.orderId,
    this.paymentItem, this.currencyCode, this.narration, this.terminalId, this.terminalType, this.preauth);