boolean_feature.test

true bool(true)
false bool(false)
bool(null)

----------------------------------------------------

[
	["boolean", "true"],
	["class-name", "bool"],
	["punctuation", "("],
	["boolean", "true"],
	["punctuation", ")"],

	["boolean", "false"],
	["class-name", "bool"],
	["punctuation", "("],
	["boolean", "false"],
	["punctuation", ")"],

	["class-name", "bool"],
	["punctuation", "("],
	["boolean", "null"],
	["punctuation", ")"]
]