Cancels the unit of work represented by this reference.
Cancels the unit of work represented by this reference.
Guaranteed idempotency - calling it multiple times should have the same side-effect as calling it only once. Implementations of this method should also be thread-safe.
      
    
      
      
    
      
      
    
      
      
    
      
      
    
      
      
    
      
      
    
      
      
    
      
      
    
      
Represents a one-time idempotent action that can be used to cancel async computations, or to release resources that active data sources are holding.
It is equivalent to
java.io.Closeable, but without the I/O focus, or toIDisposablein Microsoft .NET, or toakka.actor.Cancellable.