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: rendering.rb
    path of file: ./repos/arbre/lib/arbre/rails
    
    the code of the file until where you have to start completion: # frozen_string_literal: true
module Arbre
  module Rails
    mod
    
      def render(*args)
        rendered = helpers.render(*args)
        case rendered
        when Arbre::Context
          current_arbre_element.add_child rendered
        else
          text_node rendered
        end