code: def dashboard_id(cls):
      return sa.Column("dashboard_id", sa.ForeignKey("dashboards.uuid"))
  
file_path: aim/aim/web/api/dashboard_apps/models.py
imports: import uuid
  import sqlalchemy
  from sqlalchemy.orm import relationship
  from sqlalchemy.ext.declarative import declared_attr
  from aim.web.api.db import Base
  from aim.web.api.utils import datetime_now
label_desc: Use image node_id 1 for calling the AppMixin obj's underlying member method code with example usage: obj.dashboard_id(cls) and returns: sa