Creates a new, blank dashboard and redirects to it in edit mode

def new(self):
        """Creates a new, blank dashboard and redirects to it in edit mode"""
        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')