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: nfs.rb
    path of file: ./repos/vagrant/plugins/hosts/gentoo/cap
    
    the code of the file until where you have to start completion: # Copyright (c) HashiCorp, Inc.
# SPDX-License-Identifier: BUSL-1.1

require "vagrant/util/subprocess"
require "vagrant/util/which"

module VagrantPlugins
  module HostGentoo
    module Cap
      class
    
        def self.systemctl_path
          path = Vagrant::Util::Which.which("systemctl")
          return path if path

          folders = ["/usr/bin", "/usr/sbin"]
          folders.each do |folder|
            path = "#{folder}/systemctl"
            return path if File.file?(path)
          end
        end