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: asset_path_rewriter.rb
    path of file: ./repos/archivesspace/common/aspace-rails
    
    the code of the file until where you have to start completion: #
# This is another funny but not "ha ha" funny thing.  In production mode, the
# Rails asset pipeline takes our LESS files, grinds away, and spits out static
# CSS, compressed, compiled, etc..  This is a problem for us because it assumes
# that the paths to any assets referenced within the CSS are known at the time
# precompilation t
    
  def rewrite_for_prefix(path, prefix)
    css = File.read(path)
    css.gsub!(%r{url\(/assets/}, "url(#{prefix}assets/")
    css.gsub!(%r{url\("/assets/}, "url(\"#{prefix}assets/")
    css.gsub!(%r{url\('/assets/}, "url('#{prefix}assets/")
    File.open(path, "w") do |fh|
      fh.write(css)
    end

    if File.exist?(path + '.gz')
      Zlib::GzipWriter.open(path + '.gz') do |gz|
        gz.write css
      end
    end