write method
Stores newValue in property name of target; only called after
canWrite returned true.
An exception other than a SpelEvaluationException is reported as
exceptionDuringPropertyWrite (EL1034E).
Implementation
@override
void write(
EvaluationContext context,
Object target,
String name,
Object? newValue,
) => throw UnsupportedError('Beans cannot be assigned');