code: def new(self):
          
          new_dashboard = models.Dashboard(
              dashboard_title='[ untitled dashboard ]',
              owners=[g.user],
          )
          db.session.add(new_dashboard)
          db.session.commit()
          return redirect(f'/superset/dashboard/{new_dashboard.id}/?edit=true')
docs: Creates a new, blank dashboard and redirects to it in edit mode