@type config() :: %{
  region: String.t(),
  endpoint: String.t(),
  access_key_id: String.t(),
  access_key_secret: String.t(),
  security_token: String.t() | nil
}

@type t() :: %Aliyun.Oss.Config{
  access_key_id: String.t(),
  access_key_secret: String.t(),
  endpoint: String.t(),
  region: String.t(),
  security_token: String.t() | nil
}