My first thought was that this is useful when you need a lambda that does this, now you can use ::toggle

You could do `bool::not` before, but this is clearer and doesn't require imports.

	▲	CUViper 10 hours ago \| parent [-]
		`bool::not` returns the value, while `bool::toggle` is more like a `not_assign`.

masklinn 19 hours ago | parent | prev [-]

Now I just need the integer types to gain in-place inc() and dec()

I don’t know how to feel about toggle returning neither old nor new value tho.