code: public Observable<Page<AvailableServiceSkuInner>> listSkusNextAsync(final String nextPageLink) {
          return listSkusNextWithServiceResponseAsync(nextPageLink)
              .map(new Func1<ServiceResponse<Page<AvailableServiceSkuInner>>, Page<AvailableServiceSkuInner>>() {
                  @Override
                  public Page<AvailableServiceSkuInner> call(ServiceResponse<Page<AvailableServiceSkuInner>> response) {
                      return response.body();
                  }
              });
      }
docs: Get compatible SKUs.
  The services resource is the top-level resource that represents the Data Migration Service. The skus action returns the list of SKUs that a service resource can be updated to.
  
  @param nextPageLink The NextLink from the previous successful call to List operation.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the PagedList&lt;AvailableServiceSkuInner&gt; object