public void beginDownload(String resourceGroupName, String virtualWANName, GetVpnSitesConfigurationRequest request) {
        beginDownloadWithServiceResponseAsync(resourceGroupName, virtualWANName, request).toBlocking().single().body();
    }
public void beginDownload ( String resourceGroupName , String virtualWANName , GetVpnSitesConfigurationRequest request ) { beginDownloadWithServiceResponseAsync ( resourceGroupName , virtualWANName , request ) . toBlocking ( ) . single ( ) . body ( ) ; }
Gives the sas-url to download the configurations for vpn-sites in a resource group.

@param resourceGroupName The resource group name.
@param virtualWANName The name of the VirtualWAN for which configuration of all vpn-sites is needed.
@param request Parameters supplied to download vpn-sites configuration.
@throws IllegalArgumentException thrown if parameters fail the validation
@throws ErrorException thrown if the request is rejected by server
@throws RuntimeException all other wrapped checked exceptions if the request fails to be sent