@type status() :: :unknown | :processing | :paired | :expired

@type t() :: %Sumup.Reader{
  created_at: DateTime.t() | nil,
  device_identifier: String.t() | nil,
  device_model: String.t() | nil,
  id: String.t(),
  metadata: map() | nil,
  name: String.t() | nil,
  raw: map(),
  service_account_id: String.t() | nil,
  status: status(),
  updated_at: DateTime.t() | nil
}