async def test_aload_data_async(sqlite_engine):
    """`aload_data` wraps the sync loader via asyncio.to_thread()."""
    reader = _create_reader(sqlite_engine)
    docs = await reader.aload_data(query="SELECT * FROM items")

    assert len(docs) == 2
    assert docs[0].text_resource and docs[0].text_resource.text
    assert docs[0].text_resource.text.startswith("id: 1")
`aload_data` wraps the sync loader via asyncio.to_thread().
llama-index-integrations/readers/llama-index-readers-database/tests/test_readers_database.py