map<TResult extends Object?>  method 
- @optionalTypeArgs
- required TResult general(- ErrorCompat_General value
 
A switch-like method, using callbacks.
Callbacks receives the raw object, upcasted. It is equivalent to doing:
switch (sealedClass) {
  case final Subclass value:
    return ...;
  case final Subclass2 value:
    return ...;
}
Implementation
@optionalTypeArgs TResult map<TResult extends Object?>({required TResult Function( ErrorCompat_General value)  general,}){
final _that = this;
switch (_that) {
case ErrorCompat_General():
return general(_that);}
}