{
 "relationships": [
  {
   "destinationLayerId": 1,
   "attributed": false,
   "composite": true,
   "originLayerId": 0,
   "name": "",
   "backwardPathLabel": "groupBySummary",
   "rules": [],
   "originPrimaryKey": "join_id",
   "forwardPathLabel": "groupBySummary",
   "id": 0,
   "originForeignKey": "join_id",
   "cardinality": "esriRelCardinalityOneToMany"
  }
 ]
}