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: jing-trang.rb
    path of file: ./repos/homebrew-core/Formula/j
    
    the code of the file until where you have to start completion: class JingTrang < Formula
  desc "Schema validation and conversion based on RELAX NG"
  homepage "http://www.thaiopensource.com/relaxng/"
  url "https://github.com/relaxng/jing-trang.git",
      tag:      "V20220510",
      revision: "84ec6ad578d6e0a77342baa5427851f98028bfd8"
  license "BSD-3-
    
  def install
    ENV["JAVA_HOME"] = Formula["openjdk@11"].opt_prefix
    system "./ant", "jing-dist"
    system "./ant", "trang-dist"
    system "unzip", "-o", "-d", "build/dist", "build/dist/jing-#{version}.zip"
    system "unzip", "-o", "-d", "build/dist", "build/dist/trang-#{version}.zip"
    libexec.install Dir["build/dist/jing-#{version}"]
    libexec.install Dir["build/dist/trang-#{version}"]
    bin.write_jar_script libexec/"jing-#{version}/bin/jing.jar", "jing", java_version: "11"
    bin.write_jar_script libexec/"trang-#{version}/trang.jar", "trang", java_version: "11"
  end