@type t() :: %Mayfly.Events.SQS.Record{
  attributes: map(),
  body: term(),
  event_source_arn: String.t() | nil,
  md5: String.t() | nil,
  message_attributes: %{optional(String.t()) => term()},
  message_id: String.t(),
  raw: map(),
  receipt_handle: String.t() | nil,
  region: String.t() | nil
}