@callback last_completed(term()) :: String.t() | nil

@callback log_paths(term(), String.t(), String.t()) :: %{
  log_file: String.t() | nil,
  events_file: String.t() | nil
}

@callback mark_completed(term(), String.t(), term()) :: :ok

@callback mark_failed(term(), String.t()) :: :ok

@callback setup(map()) :: {:ok, term()} | {:error, term()}

@callback statuses(term()) :: map()