old_contents: from zou.app import db
  from zou.app.models.serializer import SerializerMixin
  from zou.app.models.base import BaseMixin
  
  
  class CustomAction(db.Model, BaseMixin, SerializerMixin):
      name = db.Column(db.String(80), nullable=False)
      url = db.Column(db.String(400))
  
new_contents: from zou.app import db
  from zou.app.models.serializer import SerializerMixin
  from zou.app.models.base import BaseMixin
  
  
  class CustomAction(db.Model, BaseMixin, SerializerMixin):
      name = db.Column(db.String(80), nullable=False)
      url = db.Column(db.String(400))
      entity_type = db.Column(db.String(40), default="all")
  
subject: Add entity type column to actions