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: account_setup_reminder.rb
    path of file: ./repos/arooo/app/service_objects
    
    the code of the file until where you have to start completion: class AccountSetupReminder
  def initialize(users)
    @users = users
  end

  def send_emails

    
  def send_emails
    @users.each do |user|
      processed_at = user.application.processed_at
      next unless processed_at

      if processed_at < 2.days.ago && processed_at > 4.days.ago
        NewMembersMailer.three_day_reminder(user).deliver_now
      elsif processed_at < 6.days.ago && processed_at > 8.days.ago
        NewMembersMailer.seven_day_reminder(user).deliver_now
      elsif processed_at < 13.days.ago && processed_at > 15.days.ago
        NewMembersMailer.fourteen_day_reminder(user).deliver_now
      elsif processed_at < 20.days.ago && processed_at > 22.days.ago
        NewMembersMailer.twenty_one_day_reminder(user).deliver_now
      end
    end