tests/format/option-bool/element-not.bst - buildstream - Git at Google

 kind: manual
 variables:
   thepony: "a pony"
   (?):
   - not pony:
       thepony: "not pony"
	kind: manual
	variables:
	thepony: "a pony"
	(?):
	- not pony:
	thepony: "not pony"