Used to identify other PaymentInstruments to be used as part of a payment. View Source model/PaymentInstruments.d.ts, line 171 Members Type: number # amount The amount of the payment to be paid using this instrument. View Source model/PaymentInstruments.d.ts, line 181 Type: string # paymentInstrumentId The ID of the payment instrument View Source model/PaymentInstruments.d.ts, line 177