An AST transformation that takes each method in the given class and adds a delegate method that returns a Promise and executes the method asynchronously. For example given the following class:
 class BookApi {
    List listBooksByTitle(String title) { }
 }
  
 @DelegateAsync(BookApi)
 class AsyncBookApi {}
 
 class AsyncBookApi {
     private BookApi $bookApi
     Promise> listBooksByTitle(String title) {
        (Promise>)Promises.createPromise {
            $bookApi.listBooksByTitle(title)
        }
     }
 }
 
| Type | Name and description | 
|---|---|
| java.lang.Class | value()@default DelegateAsync | 
| Methods inherited from class | Name | 
|---|---|
| class java.lang.Object | java.lang.Object#wait(long, int), java.lang.Object#wait(long), java.lang.Object#wait(), java.lang.Object#equals(java.lang.Object), java.lang.Object#toString(), java.lang.Object#hashCode(), java.lang.Object#getClass(), java.lang.Object#notify(), java.lang.Object#notifyAll() |