ASGI lifespan crash

client_python version: testing on 0.15.0 but the offending code exists in the master branch as well.

I'm trying to use the prometheus ASGI handler with Hypercorns DispatcherMiddleware. It sends lifecycle events which are not properly handled:

def make_asgi_app(registry: CollectorRegistry = REGISTRY, disable_compression: bool = False) -> Callable:
    """Create a ASGI app which serves the metrics from a registry."""

    async def prometheus_app(scope, receive, send):
        assert scope.get("type") == "http"
        # Prepare parameters

assert scope.get("type") == "http" ensures any ASGI middleware sending lifecycle events will fail to start the prometheus asgi app.

Comienza en la función make_asgi_app y su aserción de que el tipo de scope de ASGI es http. Reproduce el fallo usando el controlador ASGI de Prometheus con DispatcherMiddleware de Hypercorn, incluidos sus eventos del ciclo de vida. Se considera terminado cuando los eventos del ciclo de vida ya no provocan un fallo durante el arranque y el controlador sigue atendiendo solicitudes de métricas.