interface GameSDKResult {
  ok: true
  rank: number
}

interface GameSDKError {
  ok: false
  error: string
}

interface IGameSDK {
  /** This game's id string */
  gameId: string
  /** Current player's display name */
  getPlayerName(): string
  /** Submit a score. Returns rank on success. */
  submit(score: number): Promise<GameSDKResult | GameSDKError>
}

declare const GameSDK: IGameSDK