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: 02_users.rb
    path of file: ./repos/gitlabhq/db/fixtures/development
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require './spec/support/sidekiq_middleware'

class Gitlab::Seeder::Users
  include ActionView::Helpers::NumberHelper

  RANDOM_USERS_COUNT = 20
  MASS_NAMESPACES_COUNT = ENV['CI'] ? 1 : 100
  MASS_USERS_COUNT = ENV['CI'] ? 10 : 1_000_000
  attr_reader :opts

  def initialize(opts = {
    
  def create_random_users!
    RANDOM_USERS_COUNT.times do |i|
      begin
        User.create!(
          username: FFaker::Internet.user_name,
          name: FFaker::Name.name,
          email: FFaker::Internet.email,
          confirmed_at: DateTime.now,
          password: random_password
        ) do |user|
          user.assign_personal_namespace
        end

        print '.'
      rescue ActiveRecord::RecordInvalid
        print 'F'
      end
    end