iterator.keys ViewHelper <vhs:iterator.keys>  
            
    Gets keys from an iterator.
Arguments
subject
- DataType
 - mixed
 - Required
 - false
 - Description
 - Input to work on - Array/Traversable/...
 
as
- DataType
 - string
 - Required
 - false
 - Description
 - Template variable name to assign; if not specified the ViewHelper returns the variable instead.