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_runner.rb
    path of file: ./repos/ruby/lib/rubygems
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

#--
# Copyright 2006 by Cha
    
  def run(args)
    build_args = extract_build_args args

    do_configuration args

    begin
      Gem.load_env_plugins
    rescue StandardError
      nil
    end