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: helpers.rb
    path of file: ./repos/jekyll-auth/lib/jekyll_auth
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

class JekyllAuth
  module Helpers
    def whitelisted?
      return true if request.path_info == "/logout"

    
    def authentication_strategy
      if !ENV["GITHUB_TEAM_ID"].to_s.blank?
        :team
      elsif !ENV["GITHUB_TEAM_IDS"].to_s.blank?
        :teams
      elsif !ENV["GITHUB_ORG_NAME"].to_s.blank?
        :org
      end