# File lib/chef-config/config.rb, line 972
    def self.export_proxies
      export_proxy("http", http_proxy, http_proxy_user, http_proxy_pass) if key?(:http_proxy) && http_proxy
      export_proxy("https", https_proxy, https_proxy_user, https_proxy_pass) if key?(:https_proxy) && https_proxy
      export_proxy("ftp", ftp_proxy, ftp_proxy_user, ftp_proxy_pass) if key?(:ftp_proxy) && ftp_proxy
      export_no_proxy(no_proxy) if key?(:no_proxy) && no_proxy
    end