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-rw-r--r--taskflow/db/sqlalchemy/models.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/taskflow/db/sqlalchemy/models.py b/taskflow/db/sqlalchemy/models.py
index 9ae6757..6f8a150 100644
--- a/taskflow/db/sqlalchemy/models.py
+++ b/taskflow/db/sqlalchemy/models.py
@@ -22,10 +22,10 @@ SQLAlchemy models for taskflow data.
import json
from oslo.config import cfg
-from sqlalchemy import Column, Integer, String, Table, MetaData
+from sqlalchemy import Column, Integer, String, Table
from sqlalchemy.exc import IntegrityError
from sqlalchemy.ext.declarative import declarative_base
-from sqlalchemy.orm import object_mapper, relationship, backref
+from sqlalchemy.orm import object_mapper, relationship
from sqlalchemy import DateTime, ForeignKey
from sqlalchemy import types as types