Function getAvailability

getAvailability(urlPrefix): Promise<undefined | KosServiceResponse<AvailabilityResponse>>
Retrieves the availability nodes for a specified nozzle.

Uses the KOS endpoint [GET] ${URL}/api/ext/dispense/nozzle/${nozzleId}/pipeline/beverage/availability
Parameters
- urlPrefix: string
Returns Promise<undefined | KosServiceResponse<AvailabilityResponse>>
- the availability nodes for the specified nozzle.
Example
```
import { NozzleServices } from "@kosdev-code/kos-dispense-sdk";
...

const availability = await NozzleServices.getAvailability("nozzle-1");
if (availability?.status !== 200) {
    throw new Error("Failed to load nozzle availability");
 }
```