Function rest_availability_service_get_limits 

async fn rest_availability_service_get_limits<S>(
    __arg0: State<Arc<S>>,
    headers: HeaderMap,
    __arg2: Query<GetLimitsRequest>,
) -> Result<Json<LimitsResponse>, RestError>
where
    S: AvailabilityService + Send + Sync + 'static,

GetLimits - JSON endpoint.

GET /v2/availability/limits