PaymentRequest constructor Null safety

PaymentRequest(
  1. {String? to,
  2. String? from,
  3. Int64? amount,
  4. String? memo}
)

Implementation

factory PaymentRequest({
  $core.String? to,
  $core.String? from,
  $fixnum.Int64? amount,
  $core.String? memo,
}) {
  final _result = create();
  if (to != null) {
    _result.to = to;
  }
  if (from != null) {
    _result.from = from;
  }
  if (amount != null) {
    _result.amount = amount;
  }
  if (memo != null) {
    _result.memo = memo;
  }
  return _result;
}