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: configuration.rb
    path of file: ./repos/vets-api/lib/ihub
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require 'common/client/configuration/rest'

module IHub
  class Configuration < Common::Client::Configuration::REST
    def connection
      @conn ||= Faraday.new(base_path, headers: base
    
    def connection
      @conn ||= Faraday.new(base_path, headers: base_request_headers, request: request_options) do |faraday|
        faraday.use      :breakers
        faraday.use      Faraday::Response::RaiseError

        faraday.response :betamocks if mock_enabled?
        faraday.response :snakecase, symbolize: false
        faraday.response :json, content_type: /\bjson/ # ensures only json content types parsed
        faraday.adapter Faraday.default_adapter
      end
    end