mapOrNull<TResult extends Object?>  method 
- @optionalTypeArgs
- TResult? knownValue(- RepoPutRecordValidationStatusKnownValue value
 
- TResult? unknown(- RepoPutRecordValidationStatusUnknown value
 
A variant of map that fallback to returning null.
It is equivalent to doing:
switch (sealedClass) {
  case final Subclass value:
    return ...;
  case _:
    return null;
}
Implementation
@optionalTypeArgs TResult? mapOrNull<TResult extends Object?>({TResult? Function( RepoPutRecordValidationStatusKnownValue value)?  knownValue,TResult? Function( RepoPutRecordValidationStatusUnknown value)?  unknown,}){
final _that = this;
switch (_that) {
case RepoPutRecordValidationStatusKnownValue() when knownValue != null:
return knownValue(_that);case RepoPutRecordValidationStatusUnknown() when unknown != null:
return unknown(_that);case _:
  return null;
}
}