You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: htpasswd.rb
    path of file: ./repos/truffleruby/test/mri/tests/lib/webrick/httpauth
    
    the code of the file until where you have to start completion: # frozen_string_literal: false
#
# httpauth/htpasswd -- Apache compatible htpasswd file
#
# Author: IPR -- Internet Programming with Ruby -- writers
# Copyright (c) 2003 Internet Programming with Ruby writers. All rights
# reserved.
#
# $IPR: htpasswd.rb,v 
    
      def initialize(path, password_hash: nil)
        @path = path
        @mtime = Time.at(0)
        @passwd = Hash.new
        @auth_type = BasicAuth
        @password_hash = password_hash

        case @password_hash
        when nil
          # begin
          #   require "string/crypt"
          # rescue LoadError
          #   warn("Unable to load string/crypt, proceeding with deprecated use of String#crypt, consider using password_hash: :bcrypt")
          # end
          @password_hash = :crypt
        when :crypt
          # require "string/crypt"
        when :bcrypt
          require "bcrypt"
        else
          raise ArgumentError, "only :crypt and :bcrypt are supported for password_hash keyword argument"
        end