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: utils.rb
    path of file: ./repos/artichoke/artichoke-backend/vendor/ruby/test/net/http
    
    the code of the file until where you have to start completion: # frozen_string_literal: false
require 'webrick'
begin
  require "webrick/https"
rescue LoadError
  # SSL features cannot be tested
end
require 'webrick/httpservlet/abstract'

module TestNetHTTPUtils
  def start(&block)
    new().start(&block)
  end

  def new
    klass = Net::HTTP::Proxy(c
    
  def spawn_server
    @log = []
    @log_tester = lambda {|log| assert_equal([], log ) }
    @config = self.class::CONFIG
    server_config = {
      :BindAddress => config('host'),
      :Port => 0,
      :Logger => WEBrick::Log.new(@log, WEBrick::BasicLog::WARN),
      :AccessLog => [],
      :ServerType => Thread,
    }
    server_config[:OutputBufferSize] = 4 if config('chunked')
    server_config[:RequestTimeout] = config('RequestTimeout') if config('RequestTimeout')
    if defined?(OpenSSL) and config('ssl_enable')
      server_config.update({
        :SSLEnable      => true,
        :SSLCertificate => config('ssl_certificate'),
        :SSLPrivateKey  => config('ssl_private_key'),
        :SSLTmpDhCallback => config('ssl_tmp_dh_callback'),
      })
    end