@type t() :: %Codex.OAuth.Session.PendingDeviceLogin{
  context: struct(),
  device_code: String.t(),
  expires_at: DateTime.t() | nil,
  flow: atom(),
  interval_ms: pos_integer(),
  provider: atom(),
  storage: :file | :memory | :auto,
  user_code: String.t(),
  verification_url: String.t(),
  warnings: [String.t()] | nil
}