def get_key_by_kid(self, kid, owner=""):
        for kb in self.issuer_keys[owner]:
            _key = kb.get_key_with_kid(kid)
            if _key:
                return _key
        return None
Return the key from a specific owner that has a specific kid
dataset/ETHPy150Open rohe/pyoidc/src/oic/utils/keyio.py/KeyJar.get_key_by_kid