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: components.rb
    path of file: ./repos/vagrant/lib/vagrant/plugin/v2
    
    the code of the file until where you have to start completion: # Copyright (c) HashiCorp, Inc.
# SPDX-License-Identifier: BUSL-1.1

module Vagrant
  module Plugin
    module V2
      # This is the container class for the components of a single plugin.
      # This allows us to separate the plugin class which defines the
      # components, and the actual container of those components. This
      # removes a bit of state over
    
        def initialize
          # The action hooks hash defaults to []
          @action_hooks = Hash.new { |h, k| h[k] = [] }

          @commands = Registry.new
          @configs = Hash.new { |h, k| h[k] = Registry.new }
          @guests  = Registry.new
          @guest_capabilities = Hash.new { |h, k| h[k] = Registry.new }
          @hosts   = Registry.new
          @host_capabilities = Hash.new { |h, k| h[k] = Registry.new }
          @providers = Registry.new
          @provider_capabilities = Hash.new { |h, k| h[k] = Registry.new }
          @pushes = Registry.new
          @synced_folders = Registry.new
          @synced_folder_capabilities = Hash.new { |h, k| h[k] = Registry.new }
        end