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: playgrounds_controller.rb
    path of file: ./repos/script_core/spec/dummy/app/controllers
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

class PlaygroundsController < ApplicationController
  before_action :set_source

  def show
    @source = <<~CODE
      puts "You can use `puts` to output strings to (fake) stdout for loggi
    
  def show
    @source = <<~CODE
      puts "You can use `puts` to output strings to (fake) stdout for logging."
      puts "Call multiple absolutely OK!"

      module Foo
        class Bar
          attr_reader :flag

          def initialize(val)
            @flag = val
          end
        end