Method add

tests/debug/config.py:249–252

(self, key)

            return key in self.config["debugOptions"]

        def add(self, key):
            opts = self.config.setdefault("debugOptions", [])
            if key not in opts:
                opts.append(key)

        def discard(self, key):
            opts = self.config.get("debugOptions", [])