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: alert_confirmer.rb
    path of file: ./repos/huginn/spec/support
    
    the code of the file until where you have to start completion: module AlertConfirmer
  def reject_confirm_from &block
    handle_js_modal 'confirm', false, &block
  end

  def accept_confirm_from &block
    handle_js_modal 'confirm', true, &block
  end

  def accept_alert_from &block
    handle_js_modal 'alert', true, &block
  end

  def get_alert_text_from &block
    handle_js_modal 'alert', true, true, &block
    get_modal_text 'a
    
  def handle_js_modal name, return_val, wait_for_call = false, &block
    modal_called = "window.#{name}.called"
    page.execute_script "
    window.original_#{name}_function = window.#{name};
    window.#{name} = function(msg) { window.#{name}Msg = msg; window.#{name}.called = true; return #{!!return_val}; };
    #{modal_called} = false;
    window.#{name}Msg = null;"

    block.call

    if wait_for_call
      timed_out = false
      timeout_after = Time.now + Capybara.default_max_wait_time
      loop do
        if page.evaluate_script(modal_called).nil?
          raise 'appears that page has changed since this method has been called, please assert on page before calling this'
        end

        break if page.evaluate_script(modal_called) ||
          (timed_out = Time.now > timeout_after)

        sleep 0.001
      end