code: public NameAvailabilityInner checkNameAvailability(String location, NameAvailabilityParameters parameters) {
          return checkNameAvailabilityWithServiceResponseAsync(location, parameters).toBlocking().single().body();
      }
docs: Checks that the SignalR name is valid and is not already in use.
  
  @param location the region
  @param parameters Parameters supplied to the operation.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @throws CloudException thrown if the request is rejected by server
  @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent
  @return the NameAvailabilityInner object if successful.