refactor logging options

pkg/simple/client/notification/options.go

@@ -0,0 +1,17 @@
+package notification
+
+type NotificationOptions struct {
+	Endpoint string
+}
+
+func NewNotificationOptions() *NotificationOptions {
+	return &NotificationOptions{
+		Endpoint: "",
+	}
+}
+
+func (s *NotificationOptions) ApplyTo(options *NotificationOptions) {
+	if s.Endpoint != "" {
+		options.Endpoint = s.Endpoint
+	}
+}