with read_image() as image_file:
        for chunk in image_file:
            yield chunk


@app.get("/image/stream-no-async-no-annotation", response_class=PNGStreamingResponse)
def stream_image_no_async_no_annotation():
    with read_image() as image_file:
        for chunk in image_file:

from app.utils import read_image

app = FastAPI()


class PNGStreamingResponse(StreamingResponse):
    media_type = "image/png"

@app.get("/image", response_class=PNGStreamingResponse)
def stream_image_no_async_no_annotation():
    with read_image() as image_file:
        yield from image_file
```

prefer this over returning a `StreamingResponse` directly:

```python
# DO NOT DO THIS

import anyio