{
  "$schema": "http://json-schema.org/draft-07/schema",
  "definitions": {
    "user": {
      "type": "object",
      "description": "definition snipped. learn more: https://api.slack.com/events/user_change",
      "properties": {
      }
    },
    "team_join": {
      "type": "object",
      "description": "learn more: https://api.slack.com/events/team_join",
      "properties": {
        "type": {
          "const": "team_join"
        },
        "user": {
          "$ref": "#/definitions/user"
        }
      },
      "example": {
        "type": "team_join",
        "user": {
        }
      }
    }
  }
}