add lazy_text

note/models.py

@@ -6,6 +6,7 @@ from django.conf import settings
 from django.contrib.auth.models import User
 from django.db import models
 
+from django.utils.translation import gettext_lazy as _
 from django.contrib.contenttypes.models import ContentType
 from django.contrib.contenttypes.fields import GenericForeignKey