Invert = Patch Bool
Invert::
_zero = False
_invert self = not self
Invert.
zero = Invert::_zero
invert self = self::_invert()
assert False.invert()
.ToLower = Patch Str
.ToLower::
_lowers = "abcdefghijklmnopqrstuvwxyz"
_to_lowercase self = self.lower()
.ToLower.
lowers = .ToLower::_lowers
to_lowercase self = self::_to_lowercase()
print! "".lowers
print! "AAA".to_lowercase()