whenOrNull<TResult extends Object?> method
TResult?
whenOrNull<TResult extends Object?>({
- TResult? applePay()?,
inherited
Implementation
@optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>({
TResult? Function(String orderTypeIdentifier, String orderIdentifier,
String webServiceUrl, String authenticationToken)?
applePay,
}) =>
throw _privateConstructorUsedError;