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: user_simulator.rb
    path of file: ./repos/discourse/script
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

# used during local testing, simulates a user active on the site.
#
# by default 1 new topic 
    
def sentence
  @gabbler ||=
    Gabbler.new.tap do |gabbler|
      story = File.read(File.dirname(__FILE__) + "/alice.txt")
      gabbler.learn(story)
    end

  sentence = +""
  until sentence.length > 800
    sentence << @gabbler.sentence
    sentence << "\n"
  end