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: config.rb
    path of file: ./repos/gitlabhq/lib/gitlab/auth/saml
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Gitlab
  module Auth
    module Saml
      class Config
        DEFAULT_NICKNAME_ATTRS = %w[username nickname].freeze
        DEFAULT_NAME_ATTRS = %w[
          http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name
          http://schemas.microsoft.com/ws/2008/06/identity/claims/name
        ].freeze
        DEFAULT_EMAIL_ATTRS = %w[
          http://sch
    
          def default_attribute_statements
            defaults = OmniAuth::Strategies::SAML.default_options[:attribute_statements].to_hash.deep_symbolize_keys
            defaults[:nickname] = DEFAULT_NICKNAME_ATTRS.dup
            defaults[:name].concat(DEFAULT_NAME_ATTRS)
            defaults[:email].concat(DEFAULT_EMAIL_ATTRS)
            defaults[:first_name].concat(DEFAULT_FIRST_NAME_ATTRS)
            defaults[:last_name].concat(DEFAULT_LAST_NAME_ATTRS)

            defaults
          end