static if(!(is(T U == immutable U)))
static if(!(is(T U == shared inout const U)))
static if(!(is(T U == shared inout U)))
static if(!(is(T U == shared const U)))
static if(!(is(T U == shared U)))
static if(!(is(T U == inout const U)))
static if(!(is(T U == inout U)))
static if(is(T U == const U))