Attribute for overriding the type of a property with a custom type. If you add this attribute to a PropertyInfo object, then all subsequent calls to getValue()/getArrayItem()/getIndexedValue() will perform a conversion from the actual property's type to the custom type specified through this attribute. Similarly, all methods in PropertyInfo that alter the property's value will accept a value of the custom type instead of the actual type. In this case the conversion is implicit and occurs later within the accessor methods.