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_deletion_rate_report.rb
    path of file: ./repos/identity-idp/app/services/reporting
    
    the code of the file until where you have to start completion: module Reporting
  class AccountDeletionRateReport
    attr_reader :report_date

    def initialize(report_date = Time.zone.today)
      @report_date = report_date
    end

    
    
    def deleted_user_count
      @deleted_user_count ||= Reports::BaseReport.transaction_with_timeout do
        DeletedUser.
          where(deleted_at: start_date..end_date).
          where('user_created_at < ?', end_date).
          count
      end
    end