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: layouts.rb
    path of file: ./repos/stackneveroverflow/vendor/bundle/ruby/2.3.0/gems/actionview-5.0.3/lib/action_view
    
    the code of the file until where you have to start completion: require "action_view/rendering"
require "activ
    
    def _normalize_options(options) # :nodoc:
      super

      if _include_layout?(options)
        layout = options.delete(:layout) { :default }
        options[:layout] = _layout_for_option(layout)
      end