with (CtxManager() as example):
	...

with (CtxManager1(), CtxManager2()):
	...

with (CtxManager1() as example, CtxManager2()):
	...

with (CtxManager1(), CtxManager2() as example):
	...

with (CtxManager1() as example1, CtxManager2() as example2):
	...

with (
	CtxManager1() as example1,
	CtxManager2() as example2,
	CtxManager3() as example3,
):
	...
