add missing flush + delint

superset/commands/dashboard/permalink/create.py

@@ -62,6 +62,7 @@ def run(self) -> str:
                 codec=self.codec,
                 key=get_deterministic_uuid(self.salt, (user_id, value)),
             )
+            db.session.flush()
             assert entry.id  # for type checks
             db.session.commit()
             return encode_permalink_key(key=entry.id, salt=self.salt)

superset/daos/key_value.py

@@ -14,6 +14,8 @@
 # KIND, either express or implied.  See the License for the
 # specific language governing permissions and limitations
 # under the License.
+from __future__ import annotations
+
 import logging
 from datetime import datetime
 from typing import Any

superset/extensions/metastore_cache.py

@@ -113,7 +113,6 @@ def add(self, key: str, value: Any, timeout: Optional[int] = None) -> bool:
             db.session.rollback()
             return False
 
-
     def get(self, key: str) -> Any:
         # pylint: disable=import-outside-toplevel
         from superset.daos.key_value import KeyValueDAO