addPlanItemToPlan

mutation AddPlanItemToPlan {
  addPlanItemToPlan {
    plan {
      Attributes {
        Created
        Etag
        LastSessionId
        Updated
        _IonValueCount
        _ValueCount
      }
      LastSessionId
      _AttributedPartsCount
      _AttributedUsersCount
      _AttributesCount
      _CommentsCount
    }
  }
}

{
  "data": {
    "addPlanItemToPlan": {
      "plan": {
        "Attributes": [
          {
            "Created": "value",
            "Etag": "string",
            "LastSessionId": "string",
            "Updated": "value",
            "_IonValueCount": 1,
            "_ValueCount": 1
          }
        ],
        "LastSessionId": "string",
        "_AttributedPartsCount": 1,
        "_AttributedUsersCount": 1,
        "_AttributesCount": 1,
        "_CommentsCount": 1
      }
    }
  }
}