attr bob::val

def bob::bob(x) : x < 10 { this.val = "Less Than Ten: " + x.to_string(); }
def bob::bob(x) { this.val = "Any Other Value: " + x.to_string(); }

auto b = bob(12)
auto c = bob(3)

assert_equal("Any Other Value: 12", b.val )
assert_equal("Less Than Ten: 3", c.val )