@type t() :: %HL7v2.Segment.AUT{
  authorization_effective_date: term(),
  authorization_expiration_date: term(),
  authorization_identifier: term(),
  authorized_number_of_treatments: term(),
  authorizing_payor_company_id: term(),
  authorizing_payor_company_name: term(),
  authorizing_payor_plan_id: term(),
  extra_fields: term(),
  process_date: term(),
  reimbursement_limit: term(),
  requested_number_of_treatments: term()
}