of static method
Implementation
static PaymentController? of(BuildContext context, {bool nullOk = false}) {
final PaymentForm? result =
context.findAncestorWidgetOfExactType<PaymentForm>();
if (nullOk || result != null) return result!.controller;
throw FlutterError.fromParts(<DiagnosticsNode>[
ErrorSummary(
'PaymentForm.of() called with a context that does not contain an PaymentForm.'),
ErrorDescription(
'No PaymentForm ancestor could be found starting from the context that was passed to PaymentForm.of().'),
context.describeElement('The context used was')
]);
}