Returns an item from the collection by in integer index value.
If the item doesn't exist
null is returned, or if
llThrowError=.T. an error is generated.
Returns item at index or null unless llThrowError is .T. in which case an error occurs on invalid index.
The integer index of the item to retrieve. This
If .T. throws an error if the index is out of bounds. Otherwise NULL is returned.
See also:Class wwCollection
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