json_schema: {
      "additionalProperties": false,
      "properties": {
          "additionalFields": {
              "event_detail": {
                  "type": "string"
              },
              "event_type": {
                  "type": "string"
              },
              "journey_stage": {
                  "type": "string"
              },
              "service_identifier": {
                  "type": "string"
              }
          },
          "chunk-size": {
              "type": "number"
          },
          "empty-data-set": {
              "type": "boolean"
          },
          "filters": {
              "items": {
                  "type": "string"
              },
              "type": "array"
          },
          "idMapping": {
              "items": {
                  "type": "string"
              },
              "type": "array"
          },
          "mappings": {
              "properties": {
                  "label": {
                      "type": "string"
                  },
                  "nb_conversions": {
                      "type": "string"
                  },
                  "nb_visits": {
                      "type": "string"
                  },
                  "nb_visits_converted": {
                      "type": "string"
                  }
              },
              "type": "object"
          }
      },
      "title": "Piwik Core Collector Options",
      "type": "object"
  }