public ServiceFuture<List<UsageInner>> listAsync(final ServiceCallback<List<UsageInner>> serviceCallback) {
        return ServiceFuture.fromResponse(listWithServiceResponseAsync(), serviceCallback);
    }
public ServiceFuture < List < UsageInner > > listAsync ( final ServiceCallback < List < UsageInner > > serviceCallback ) { return ServiceFuture . fromResponse ( listWithServiceResponseAsync ( ) , serviceCallback ) ; }
Gets the current usage count and the limit for the resources under the subscription.

@param serviceCallback the async ServiceCallback to handle successful and failed responses.
@return the {@link ServiceFuture} object