export interface Store {
  get (key: string): Promise<string | void>
  put (key: string, value: string): Promise<void>
  del (key: string): Promise<void>
}

export interface StoreWrapper {
  load (key: string): Promise<void>
  get (key: string): string
  set (key: string, value: string): void
  delete (key: string): void
  setCache (key: string, value: string): void
}