asyncgenerator fix

docs/skills/async-fastapi-sqlmodel/references/testing.md

@@ -42,7 +42,7 @@ Use migrations to provision an integration database when migrations are part of
 For tests that exercise code which calls `commit()`, start an outer transaction on one test connection. Bind the test `AsyncSession` to that connection and use `join_transaction_mode="create_savepoint"`. SQLAlchemy documents this as its test-suite pattern: session commits resolve a SAVEPOINT while fixture teardown rolls back the outer transaction.
 
 ```python
-from collections.abc import AsyncIterator
+from collections.abc import AsyncGeneratorr
 
 import pytest_asyncio
 from sqlalchemy.ext.asyncio import AsyncEngine
@@ -50,7 +50,7 @@ from sqlmodel.ext.asyncio.session import AsyncSession
 
 
 @pytest_asyncio.fixture
-async def session(test_engine: AsyncEngine) -> AsyncIterator[AsyncSession]:
+async def session(test_engine: AsyncEngine) -> AsyncGenerator[AsyncSession]:
     async with test_engine.connect() as connection:
         transaction = await connection.begin()
         test_session = AsyncSession(
@@ -78,7 +78,7 @@ def app_with_test_session(
     app: FastAPI,
     session: AsyncSession,
 ) -> FastAPI:
-    async def get_test_session() -> AsyncIterator[AsyncSession]:
+    async def get_test_session() -> AsyncGenerator[AsyncSession]:
         yield session
 
     app.dependency_overrides[get_session] = get_test_session
@@ -104,7 +104,7 @@ from sqlalchemy.ext.asyncio import AsyncEngine
 
 
 @pytest_asyncio.fixture
-async def test_engine() -> AsyncIterator[AsyncEngine]:
+async def test_engine() -> AsyncGenerator[AsyncEngine]:
     engine, _ = create_database("sqlite+aiosqlite://")
     async with engine.begin() as connection:
         await connection.run_sync(SQLModel.metadata.create_all)