id|T|(x: T): T = x
assert id(1) == 1
assert id(True) == True
assert id("hello") == "hello"

const|T, C|(c: C): C = _: T -> c
assert const(1)(2) == 1
assert const(True)(2) == True

print_to_str!|S <: Show|(s: S): Str =
    print! s
    s.to_str()