! Argument !! Type !! Direction !! Purpose
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| Dictionary || IDictionary<String{{String_MSDN}},Object{{Object_MSDN}}> || In || The dictionary containing the items
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| Key || String {{String_MSDN}} || In || The item's key
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| Result|| {{Boolean_MSDN}} || Out || True if item has been added
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| Update|| {{BooleanBoolean_MSDN}} || In || If true, an existing item is updated; if false, a new item is added
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| Value || Object {{Object_MSDN}} || In || If true, an existing item is updated; if false, a new item is added
|}