

def run_migrations_online():
    "Run migrations in 'online' mode.\n\n    In this scenario we need to create an Engine\n    and associate a connection with the context.\n\n    "
    connectable = acoustid_config.database.create_engine(poolclass=pool.NullPool)
    with connectable.connect() as connection:
        context.configure(connection=connectable, target_metadata=target_metadata, include_object=include_object)
        with context.begin_transaction():
            context.run_migrations()

dataset/ETHPy150Open lalinsky/acoustid-server/alembic/env.py run_migrations_online/VarMisuse@43/111 `connection`->`connectable`