code: public String vpnDeviceConfigurationScript(String resourceGroupName, String virtualNetworkGatewayConnectionName, VpnDeviceScriptParameters parameters) {
          return vpnDeviceConfigurationScriptWithServiceResponseAsync(resourceGroupName, virtualNetworkGatewayConnectionName, parameters).toBlocking().single().body();
      }
docs: Gets a xml format representation for vpn device configuration script.
  
  @param resourceGroupName The name of the resource group.
  @param virtualNetworkGatewayConnectionName The name of the virtual network gateway connection for which the configuration script is generated.
  @param parameters Parameters supplied to the generate vpn device script 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 String object if successful.