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Retrieve or create a new rx.lang.scala.Worker that represents serial execution of actions.
When work is completed it should be unsubscribed using unsubscribe.
Work on a rx.lang.scala.Worker is guaranteed to be sequential.
Inner representing a serial queue of actions to be executed
 
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
      the scheduler's notion of current absolute time in milliseconds.
 
      
    
       
      
    
       
      
    
       
      
    
      