mapOrNull<TResult extends Object?>  method 
      
  
TResult?
mapOrNull<TResult extends Object?>({  
    
    
- TResult preparing(- Preparing value
 
- TResult inProgress(- InProgress value
 
- TResult success(- Success value
 
- TResult failed(- Failed value
 
inherited
    Implementation
@optionalTypeArgs
TResult? mapOrNull<TResult extends Object?>({
  TResult Function(Preparing value)? preparing,
  TResult Function(InProgress value)? inProgress,
  TResult Function(Success value)? success,
  TResult Function(Failed value)? failed,
}) =>
    throw _privateConstructorUsedError;