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: janet.rb
    path of file: ./repos/homebrew-core/Formula/j
    
    the code of the file until where you have to start completion: class Janet < Formula
  desc "Dynamic language and bytecode vm"
  homepage "https://janet-lang.org"
  url "https://github.com/janet-lang/janet/arch
    
  def install
    system "meson", "setup", "build", *std_meson_args
    cd "build" do
      system "ninja"
      system "ninja", "install"
    end
    ENV["PREFIX"] = prefix
    resource("jpm").stage do
      system bin/"janet", "bootstrap.janet"
    end
  end