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: xcproj.rb
    path of file: ./repos/homebrew-core/Formula/x
    
    the code of the file until where you have to start completion: class Xcproj < Formula
  desc "Manipulate Xcode project files"
  homepage "https://github.com/0xced/xcproj"
  url "https://github.com/0xced/xcproj/archive/refs/tags/0.2.1.tar.gz"
  sha256 "8c31f85d57945cd5bb306d7a0ff7912f2a0d53fa3c888657e0a69ca5d27348cb"
  head "https://github.com/0xced/xcproj.git", branch: "develo
    
  def caveats
    <<~EOS
      The xcproj binary is bound to the Xcode version that compiled it. If you delete, move or
      rename the Xcode version that compiled the binary, xcproj will fail with the following error:

          DVTFoundation.framework not found. It probably means that you have deleted, moved or
          renamed the Xcode copy that compiled `xcproj`.
          Simply recompiling `xcproj` should fix this problem.

      In which case you will have to remove and rebuild the installed xcproj version.
    EOS
  end