xieite {}
	algo
		rot_swap()
	fn
		distr_args()
		tmp()
		unroll()
		visitor {}
	io
		dump()
		file_pipe {}
		read()
	math
		abs()
		add_overflow()
		factorial<>
		fib<>
		neg()
		num_digits()
		pow_of_2()
		wrap()
	meta
		any {}
		end<>
		name()
		try_unsign<>
		type_list {}
	pp
		ARROW()
		DEBUG
		FN()
		FWD()
		LIFT()
		PLTF
		VERSION
	str
		ch {}
		lowercase()
		str_size()
	sys
		segfault()
	trait
		is_arith<>
		is_nothrow_mv_assign<>
		is_nothrow_mv_ctor<>
		is_satisfd<>
		is_satisfd_all<>
		is_satisfd_any<>