require File.join(File.dirname(__FILE__), 'billboard-api', 'order')
require File.join(File.dirname(__FILE__), 'billboard-api', 'customer')
require File.join(File.dirname(__FILE__), 'billboard-api', 'payment_method')
require File.join(File.dirname(__FILE__), 'billboard-api', 'currency')
require File.join(File.dirname(__FILE__), 'billboard-api', 'tax')