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: settings.rb
    path of file: ./repos/thinking-sphinx/lib/thinking_sphinx
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require "pathname"

class ThinkingS
    
  def real_path(base, nonexistent = nil)
    if File.exist?(base)
      join File.realpath(base), nonexistent
    else
      components = File.split base
      real_path components.first, join(components.last, nonexistent)
    end