text: public virtual ModifyVpnTunnelOptionsResponse ModifyVpnTunnelOptions(ModifyVpnTunnelOptionsRequest request){var options = new InvokeOptions();options.RequestMarshaller = ModifyVpnTunnelOptionsRequestMarshaller.Instance;options.ResponseUnmarshaller = ModifyVpnTunnelOptionsResponseUnmarshaller.Instance;return Invoke<ModifyVpnTunnelOptionsResponse>(request, options);}