PropertyDefinition :: typed - Does property refer to a fixed data type?
A property is considered as typed, when it has got a fixed type, i.e. it is nor weak-typed or untyped. Properties, which do not define collections are typed, always.
The property return true , when it is typed and false otherwise.
When the function is called with an invalid property definition, it throws an exception.
Return value: Success ( bool )
The value is true when the function was executed successfully. Otherwise the value is set to false .