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/clayoven/lib/clayoven
    
    the code of the file until where you have to start completion: # \Clayoven Configuration
#
# \Clayoven can be configured using files `.clayoven/{sitename, hidden, tz, subtopics}`
# at the toplevel directory.
#
# If a certain configuration file doesn't exist, we automatically create a default one.
class Clayoven::Config
  # The public URL of the website excluding the 'https://' prefix
  attr_accessor
    
  def initialize
    @sitename = create_template(".clayoven/sitename", "clayoven.io").first
    @hidden = create_template ".clayoven/hidden", %w[404 scratch].join("\n")
    @tzmap =
      (create_template ".clayoven/tz", TZ_DEFAULT)
        .map { |l| l.split(" ", 2) }
        .map { |k, v| [k, v.split(" ")] }
        .to_h
    @stmap =
      (create_template ".clayoven/subtopic", SUBTOPIC_DEFAULT)
        .map { |l| l.split(" ", 2) }
        .to_h
    @stmap.default_proc = proc { |h, k| h[k] = k }
    @template = (create_template "design/template.slim", SLIM_DEFAULT).join "\n"
  end