def if_else() -> finch.int64:
    a: finch.int64 = 5
    if eq(a, 5):
        a: finch.int64 = add(a, 10)
    if lt(a, 15):
        a: finch.int64 = sub(a, 3)
    else:
        a: finch.int64 = mul(a, 2)
    return a
