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: chibi-scheme.rb
    path of file: ./repos/homebrew-core/Formula/c
    
    the code of the file until where you have to start completion: class ChibiScheme < Formula
  desc "Small footprint Scheme for use as a C Extension Language"
  homepage "https://github.com/ashinn/chibi-scheme"
  url "https://github.com/ashinn/c
    
  def install
    ENV.deparallelize

    # "make" and "make install" must be done separately
    system "make", "PREFIX=#{prefix}"
    system "make", "install", "PREFIX=#{prefix}"
  end

  test do
    output = `#{bin}/chibi-scheme -mchibi -e "(for-each write '(0 1 2 3 4 5 6 7 8 9))"`
    assert_equal "0123456789", output
    assert_equal 0, $CHILD_STATUS.exitstatus
  end
end