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: authentication_helper.rb
    path of file: ./repos/lobsters/spec/support
    
    the code of the file until where you have to start completion: # typed: false

module AuthenticationHelper
  module FeatureHelper
    def stub_login_as user
      # feature
    
    def stub_login_as user
      # feature specs don't have access to the session store
      visit "/login"
      fill_in "E-mail or Username:", with: user.email
      fill_in "Password:", with: user.password
      click_button "Login"
    end
  end