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: ruby-install.rb
    path of file: ./repos/homebrew-core/Formula/r
    
    the code of the file until where you have to start completion: class RubyInstall < Formula
  desc "Install Ruby, JRuby, Rubinius, TruffleRuby, or mruby"
  homepage "https://github.com/postmodern/ruby-install#readme"
  url "https://github.com/postmodern/ruby-
    
  def install
    system "make", "install", "PREFIX=#{prefix}"

    # Ensure uniform bottles across prefixes
    inreplace man1/"ruby-install.1", "/usr/local", "$HOMEBREW_PREFIX"
    inreplace [
      pkgshare/"ruby-install.sh",
      pkgshare/"truffleruby/functions.sh",
      pkgshare/"truffleruby-graalvm/functions.sh",
    ], "/usr/local", HOMEBREW_PREFIX
  end