do
	let! a = 29
	a = 31
	assert 31 == a
end

let b = do
	4 + 1
	7
end

assert 7 == b

let c = 3.2

do
	let c = [47]
	assert [47] == c

	do
		let c = "salut"
		assert "salut" == c
	end

	assert [47] == c
end

assert 3.2 == c