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: box.rb
    path of file: ./repos/squib/lib/squib/args
    
    the code of the file until where you have to start completion: require_relative 'arg_loader'
require_relative 'xywh_shorthands'

module Squib::Args

  module_function def extract_box(opts, deck, dsl_method_defaults = {})
    Box.new(deck, dsl_method_defaults).extract!(opts, deck)
  end

  class Box
    include ArgLoader
    include XYWHShorthands

    def initialize(deck = nil, dsl_method_defaults = {})
      @deck = deck
      @dsl_method_defaults = dsl_method_defaults
    end

    def self.parameters
      { x: 0, y: 0,
        width: :deck, height: :deck,
        radius: nil, x_radius: 0, y_radius: 0
      }
    end
    
    def validate_x(arg, i) apply_shorthands(arg, @deck, axis: :x) end
    def validate_y(arg,_i) apply_shorthands(arg, @deck, axis: :y) end

    def validate_width(arg, _i)
      return arg if @deck.nil?
      apply_shorthands(arg, @deck, axis: :x)
    end

    def validate_height(arg, _i)
      return arg if @deck.nil?
      apply_shorthands(arg, @deck, axis: :y)
    end

    def validate_x_radius(arg, i)
      return radius[i] unless radius[i].nil?
      arg
    end

    def validate_y_radius(arg, i)
      return radius[i] unless radius[i].nil?
      arg
    end   

  end

end