# File lib/chef/node.rb, line 509
    def update_from!(o)
      run_list.reset!(o.run_list)
      @automatic_attrs = o.automatic_attrs
      @normal_attrs = o.normal_attrs
      @override_attrs = o.override_attrs
      @default_attrs = o.default_attrs
      chef_environment(o.chef_environment)
      self
    end