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/pug-ruby/lib/jade-pug
    
    the code of the file until where you have to start completion: # encoding: UTF-8
# frozen_string_literal: true

require "regexp-match-polyfill"

module JadeP
    
    def method_missing(name, *args, &block)
      return super if block

      case args.size
        when 0

          # config.client?
          if name =~ /\A(\w+)\?\z/
            !!(respond_to?($1) ? send($1) : instance_variable_get("@#{ $1 }"))

          # config.client
          elsif name =~ /\A(\w+)\z/
            instance_variable_get("@#{ $1 }")

          else
            super
          end