1 files changed, 11 insertions, 22 deletions
diff --git a/alembic/env.py b/alembic/env.py
index 903d5ef..91aca63 100644
--- a/alembic/env.py
+++ b/alembic/env.py
@@ -1,15 +1,10 @@
+import asyncio
 from logging.config import fileConfig
 
+from sqlalchemy import Connection, pool
 from sqlalchemy.ext.asyncio import async_engine_from_config
-from sqlalchemy import pool
-
-import asyncio
 
 from alembic import context
-
-import sys
-sys.path.append(".")
-
 from metricity.database import build_db_uri
 from metricity.models import Base
 
@@ -23,29 +18,23 @@ fileConfig(config.config_file_name)
 
 # add your model's MetaData object here
 # for 'autogenerate' support
-# from myapp import mymodel
-# target_metadata = mymodel.Base.metadata
 target_metadata = Base.metadata
 
 # other values from the config, defined by the needs of env.py,
 # can be acquired:
-# my_important_option = config.get_main_option("my_important_option")
 # ... etc.
 
-config.set_main_option('sqlalchemy.url', build_db_uri())
+config.set_main_option("sqlalchemy.url", build_db_uri())
 
-def do_run_migrations(connection):
+def do_run_migrations(connection: Connection) -> None:
+    """Run migrations."""
     context.configure(connection=connection, target_metadata=target_metadata)
 
     with context.begin_transaction():
         context.run_migrations()
 
-async def run_async_migrations():
-    """In this scenario we need to create an Engine
-    and associate a connection with the context.
-
-    """
-
+async def run_async_migrations() -> None:
+    """Run migrations asynchronously using the asyncpg driver."""
     connectable = async_engine_from_config(
         config.get_section(config.config_ini_section),
         prefix="sqlalchemy.",
@@ -57,8 +46,9 @@ async def run_async_migrations():
 
     await connectable.dispose()
 
-def run_migrations_offline():
-    """Run migrations in 'offline' mode.
+def run_migrations_offline() -> None:
+    """
+    Run migrations in 'offline' mode.
 
     This configures the context with just a URL
     and not an Engine, though an Engine is acceptable
@@ -81,9 +71,8 @@ def run_migrations_offline():
         context.run_migrations()
 
 
-def run_migrations_online():
+def run_migrations_online() -> None:
     """Run migrations in 'online' mode."""
-
     asyncio.run(run_async_migrations())