code: public Observable<Page<SiteInner>> beginChangeVnetAsync(final String resourceGroupName, final String name, final VirtualNetworkProfile vnetInfo) {
          return beginChangeVnetWithServiceResponseAsync(resourceGroupName, name, vnetInfo)
              .map(new Func1<ServiceResponse<Page<SiteInner>>, Page<SiteInner>>() {
                  @Override
                  public Page<SiteInner> call(ServiceResponse<Page<SiteInner>> response) {
                      return response.body();
                  }
              });
      }
docs: Move an App Service Environment to a different VNET.
  Move an App Service Environment to a different VNET.
  
  @param resourceGroupName Name of the resource group to which the resource belongs.
  @param name Name of the App Service Environment.
  @param vnetInfo Details for the new virtual network.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the PagedList&lt;SiteInner&gt; object