def get_kv()

in chz/blueprint/_argmap.py [0:0]


    def get_kv(self, exact_key: str) -> tuple[str, Any] | None:
        if exact_key in self.qualified:
            return exact_key, self.qualified[exact_key]
        for wildcard_key, value in self.wildcard.items():
            if self._to_regex[wildcard_key].fullmatch(exact_key):
                return wildcard_key, value
        return None