json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "title": "SmartRTB Adapter Params",
      "description": "Required parameters for the SmartRTB server adapter",
      "type": "object",
      "properties": {
          "pub_id": {
              "type": "string",
              "description": "Assigned publisher ID",
              "minLength": 4
          },
          "med_id": {
              "type": "string",
              "description": "Property ID not zone ID not provided"
          },
          "zone_id": {
              "type": "string",
              "description": "Specific zone ID for this placement, belonging to app/site",
              "minLength": 20
          },
          "force_bid": {
              "type": "boolean",
              "description": "Force bids with a test creative"
          }
      },
      "required": [
          "pub_id"
      ]
  }