standard
        library 
 
      
    
    
    
    
      Functions
      
          - 
  repeat(int times, void action(int))
    → void
  
  
- 
  Executes the given function actionspecified number oftimes.
- 
  TODO([String? reason])
    → Never
  
  
- 
  Always throws NotImplementedException stating that operation is not implemented.
  
 
    
      Exceptions / Errors
      
          - 
  NotImplementedException 
- 
  An exception is thrown to indicate that a method body remains to be implemented.