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: runtime.rb
    path of file: ./repos/truffleruby/lib/mri/bundler
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Bundler
  class Runtime
    include SharedHelpers

    def initialize(root, definition)
      @root = root
      @definition = definition
    end

    def setup(*groups)
      @definition.ensure_equivalent_gemfile_and_lockfile if Bundler.frozen_bundle?

      # Has to happen first
      clean_load_path

      specs = @definition.specs_for(groups)

      SharedHelpers.set_bundle_environment
      Bundler.rubygems.replace_entrypoints(specs)

      # Activate the specs
      load_paths = specs.map do |spec|
        check_for_activated_spec!(spec)

        Bundler.rubygems.mark_loaded(spec)
        spec.load_paths.reject {|path| $LOAD_P
    
    def setup_manpath
      # Add man/ subdirectories from activated bundles to MANPATH for man(1)
      manuals = $LOAD_PATH.map do |path|
        man_subdir = path.sub(/lib$/, "man")
        man_subdir unless Dir[man_subdir + "/man?/"].empty?
      end.compact

      return if manuals.empty?
      Bundler::SharedHelpers.set_env "MANPATH", manuals.concat(
        ENV["MANPATH"] ? ENV["MANPATH"].to_s.split(File::PATH_SEPARATOR) : [""]
      ).uniq.join(File::PATH_SEPARATOR)
    end

    def remove_dir(dir, dry_run)
      full_name = Pathname.new(dir).basename.to_s

      parts    = full_name.split("-")
      name     = parts[0..-2].join("-")
      version  = parts.last
      output   = "#{name} (#{version})"

      if dry_run
        Bundler.ui.info "Would have removed #{output}"
      else
        Bundler.ui.info "Removing #{output}"
        FileUtils.rm_rf(dir)
      end

      output
    end