defmodule Kontonummer do
  @moduledoc """
  A library for validating Swedish bank account numbers.

  This module provides functions to validate Swedish bank account numbers
  against bank-specific rules, including Modulus-10 and Modulus-11 checks.

  ## References
  - [Bankgirot Clearingnummer och Kontonummer PDF](https://www.bankgirot.se/globalassets/dokument/teknisk-information/manualer/bankernas-kontonummeruppbyggnad.pdf)
  """
end