offset(
  job :: %Exq.Support.Job{
    args: term(),
    class: term(),
    enqueued_at: term(),
    error_class: term(),
    error_message: term(),
    failed_at: term(),
    finished_at: term(),
    jid: term(),
    processor: term(),
    queue: term(),
    retried_at: term(),
    retry: term(),
    retry_count: term(),
    unique_for: term(),
    unique_token: term(),
    unique_until: term(),
    unlocks_at: term()
  }
) :: number()