Variant data type
A variant is a data type that any other LabVIEW data type will coerce to and that can therefore contain any other LabVIEW data type inside it. In order to do useful things with variants, you will need to inspect the type descriptor to determine the actual data type flowing through the variant at run-time. When working with variants, it is recommended to use tools such as the OpenG LabVIEW Data (Variant) Tools Library.