Update env.py

backend/alembic/env.py

@@ -1,44 +1,46 @@
-
-
 import logging
 from alembic import context
 from oasst_backend import models  # noqa: F401
 from sqlalchemy import engine_from_config, pool
 
-
-
 # Read in the Alembic config file.
 config = context.config
+
 # Set up loggers.
 if config.config_file_name is not None:
     logging.config.fileConfig(config.config_file_name)
+
 # Add the model's MetaData object here for 'autogenerate' support.
 target_metadata = models.Base.metadata
+
 # Other values from the config file can be acquired as follows:
 # my_important_option = config.get_main_option("my_important_option")
 # ... etc.
 
 
-def run_migrations_offline() -> None:
+def run_migrations_offline():
     """Run migrations in 'offline' mode.
 
-    This configures the context with just a URL and not an Engine, though
-    an Engine is acceptable here as well. By skipping the Engine creation
-    we don't even need a DBAPI to be available.
+    This configures the context with just a URL and not an Engine,
+    though an Engine is acceptable here as well. By skipping the
+    Engine creation we don't even need a DBAPI to be available.
     """
     url = config.get_main_option("sqlalchemy.url")
     context.configure(
-        url=url, target_metadata=target_metadata, literal_binds=True, dialect_opts={"paramstyle": "named"}
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
     )
     with context.begin_transaction():
         context.run_migrations()
-        
-        
-def run_migrations_online() -> None:
+
+
+def run_migrations_online():
     """Run migrations in 'online' mode.
 
-    In this scenario we need to create an Engine and associate a connection
-    with the context.
+    In this scenario we need to create an Engine and associate a
+    connection with the context.
     """
     connectable = engine_from_config(
         config.get_section(config.config_ini_section),
@@ -46,13 +48,14 @@ def run_migrations_online() -> None:
         poolclass=pool.NullPool,
     )
     with connectable.connect() as connection:
-        context.configure(connection=connection, target_metadata=target_metadata)
+        context.configure(
+            connection=connection, target_metadata=target_metadata
+        )
         with context.begin_transaction():
             context.get_context()._ensure_version_table()
             connection.execute("LOCK TABLE alembic_version IN ACCESS EXCLUSIVE MODE")
             context.run_migrations()
 
-
 if context.is_offline_mode():
     run_migrations_offline()
 else: