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: gem_helper.rb
    path of file: ./repos/fastlane/fastlane/lib/fastlane/helper
    
    the code of the file until where you have to start completion: module Fastlane
  module Actions
    # will make sure a gem is installed. If it's not an appropriate error message is shown
    # this will *not* 'require' the gem
    def self.verify_gem!(gem_name)
      begin
        FastlaneRequire.install_gem_if_needed(gem_name: gem_name, require_gem: false)
        # We don't import this by default, as it's not always the same
        # also e.g. cocoapods is just required and not imported
      rescue Gem::LoadError
        UI.error("Could not find gem '#{gem_name}'")
        UI.error("")
        
    
    def self.verify_gem!(gem_name)
      begin
        FastlaneRequire.install_gem_if_needed(gem_name: gem_name, require_gem: false)
        # We don't import this by default, as it's not always the same
        # also e.g. cocoapods is just required and not imported
      rescue Gem::LoadError
        UI.error("Could not find gem '#{gem_name}'")
        UI.error("")
        UI.error("If you installed fastlane using `gem install fastlane` run")
        UI.command("gem install #{gem_name}")
        UI.error("to install the missing gem")
        UI.error("")
        UI.error("If you use a Gemfile add this to your Gemfile:")
        UI.important("  gem '#{gem_name}'")
        UI.error("and run `bundle install`")

        UI.user_error!("You have to install the `#{gem_name}` gem on this machine") unless Helper.test?
      end
      true
    end