toString method
A string representation of this object.
Some classes have a default textual representation,
often paired with a static parse function (like int.parse).
These classes will provide the textual representation as
their string representation.
Other classes have no meaningful textual representation
that a program will care about.
Such classes will typically override toString to provide
useful information when inspecting the object,
mainly for debugging or logging.
Implementation
@override
String toString() {
// Auth-v3: customerReference / amount / currency are nullable. Use
// explicit fallbacks so the string is readable when fields are bound
// server-side (the common Auth-v3 path) instead of printing 'null'.
return 'LokotroPaymentRequest('
'customerReference: ${customerReference ?? "<session-bound>"}, '
'amount: ${amount ?? "<session-bound>"}, '
'currency: ${currency ?? "<session-bound>"}, '
'paymentMethod: $paymentMethod)';
}