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_creator.rb
    path of file: ./repos/vets-api/app/services/identity
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Identity
  class AccountCreator
    def initialize(user)
      @user = user
    end

    attr_accessor :user

    def call
      return unless user.idme_uuid || user.logingov_uuid || user.sec_id

      account = create_if_needed!

      update_if_needed!(account)
    end

    private

    def create_if_needed!
      accounts = get_accounts_for_user
      account = accounts.length > 1 ? find_matching_account(accounts) : acco
    
    def update_if_needed!(account)
      # account has yet to be saved, no need to update
      return account unless account.persisted?

      # return account as is if all non-nil user attributes match up to be the same
      account_attributes = create_account_attribute_hash(account)
      user_attributes = create_account_attribute_hash(user)
      attribute_diff = hash_diff(user_attributes, account_attributes)

      return account if attribute_diff.blank?

      if attribute_diff[:logingov_uuid]
        clean_up_deprecated_accounts(account.id,
                                     attribute_diff[:logingov_uuid],
                                     :logingov_uuid)
      end