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: deprecation.rb
    path of file: ./repos/stackneveroverflow/vendor/bundle/ruby/2.3.0/gems/sprockets-3.7.1/lib/sprockets
    
    the code of the file until where you have to start completion: module Sprockets
  class Deprecation

    
      def deprecation_caller_message
        file, line, method = extract_callstack
        if file
          if line && method
            "(called from #{method} at #{file}:#{line})"
          else
            "(called from #{file}:#{line})"
          end