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

require "socket"
require "csv"
require "yaml"
require "optparse"
require "fileutils"
require "net/http"
require "uri"

@include_env = false
@result_file = nil
@iterations = 500
@best_of = 1
@mem_stats = false
@unicorn = false
    
def prereqs
  puts "Be sure to following packages are installed:

sudo apt-get -y install build-essential libssl-dev libyaml-dev git libtool libxslt-dev libxml2-dev libpq-dev gawk curl pngcrush python-software-properties software-properties-common tasksel

sudo tasksel install postgresql-server
OR
apt-get install postgresql-server^

sudo apt-add-repository -y ppa:rwky/redis
sudo apt-get update
sudo apt-get install redis-server
  "
end