static if(!(T.length == 1))
static if(!(is(T[0] == decimal128) || is(T[1] == decimal128)))
static if(T.length == 2)
static if(!(is(T[0] == decimal32)))
static if(!(is(T[1] == decimal32)))
static if(!(is(T[0] == decimal64) && is(T[1] == decimal128)))
static if(is(T[1] == decimal64) && is(T[0] == decimal128))