2.1.15 [W3C-WEBIDL1] Section 4.6.11 Initializing objects from iterables

V0001: Iterable declarations are not supported

The specification states:

 3.2.7 Iterable declarations
  
 An interface can be declared to be iterable by using an iterable declaration (matching 
 Iterable) in the body of the interface.
  
 4.2.25.1 Creating a sequence from an iterable
  
 4.6.9 Common iterator behavior
  
 4.6.9.1 @@iterator
  
 4.6.9.2 forEach
  
 4.6.10 Iterable declarations
  
 4.6.10.1 entries
  
 4.6.10.2 keys
  
 4.6.10.3 values
  
 4.6.10.4 Default iterator objects
  
 4.6.10.5 Iterator prototype object
  
 4.6.11 Initializing objects from iterables

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Iterable declarations are not supported.