{"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"
}]}