static if( HasTemplatedUDA!( Type, DeserialiseJSONAs ) )
{
    alias DeserialiseAs = GetUDA!( Type, DeserialiseJSONAs ).Verify!( typeof( obj ) );

    DeserialiseAs.ParamTypes[ 1 ] param;
    param.FromJSONInternal( strJSON );

    DeserialiseAs.Perform( obj, param );
}