/**
 * Detach Vpn Gateway Action Sample
 * Detaches a VPN gateway from a VPC. You do this if you're planning to
 * turn off the VPC and not use it anymore. You can confirm a VPN gateway
 * has been completely detached from a VPC by describing the VPN gateway
 * (any attachments to the VPN gateway are also described).
 * You must wait for the attachment's state to switch to detached before you can
 * delete the VPC or attach a different VPC to the VPN gateway.  
 * @param Amazon_EC2_Interface $service instance of Amazon_EC2_Interface
 * @param mixed $request Amazon_EC2_Model_DetachVpnGateway or array of parameters
 */
function invokeDetachVpnGateway(Amazon_EC2_Interface $service, $request)
{
    try {
        $response = $service->detachVpnGateway($request);
        echo "Service Response\n";
        echo "=============================================================================\n";
        echo "        DetachVpnGatewayResponse\n";
        if ($response->isSetResponseMetadata()) {
            echo "            ResponseMetadata\n";
            $responseMetadata = $response->getResponseMetadata();
            if ($responseMetadata->isSetRequestId()) {
                echo "                RequestId\n";
                echo "                    " . $responseMetadata->getRequestId() . "\n";
            }
        }
    } catch (Amazon_EC2_Exception $ex) {
        echo "Caught Exception: " . $ex->getMessage() . "\n";
        echo "Response Status Code: " . $ex->getStatusCode() . "\n";
        echo "Error Code: " . $ex->getErrorCode() . "\n";
        echo "Error Type: " . $ex->getErrorType() . "\n";
        echo "Request ID: " . $ex->getRequestId() . "\n";
        echo "XML: " . $ex->getXML() . "\n";
    }
}