content: {
    "$defs": {
      "WithCustomFormat": {
        "additionalProperties": false,
        "properties": {
          "dates": {
            "items": {
              "format": "date",
              "type": "string"
            },
            "type": "array"
          },
          "odds": {
            "items": {
              "format": "odd",
              "type": "string"
            },
            "type": "array"
          }
        },
        "required": [
          "dates",
          "odds"
        ],
        "type": "object"
      }
    },
    "$id": "https://github.com/invopop/jsonschema/with-custom-format",
    "$ref": "#/$defs/WithCustomFormat",
    "$schema": "https://json-schema.org/draft/2020-12/schema"
  }