# File lib/dragonfly/configurable.rb, line 7
    def self.included(klass)
      klass.class_eval do
        include Configurable::InstanceMethods
        extend Configurable::ClassMethods

        # These aren't included in InstanceMethods because we need access to 'klass'
        # We can't just put them into InstanceMethods and use 'self.class' because
        # this won't always point to the class in which we've included Configurable,
        # e.g. if we've included it in an eigenclasse
        define_method :configuration_hash do
          @configuration_hash ||= klass.default_configuration.dup
        end
        private :configuration_hash

        define_method :configuration_methods do
          klass.configuration_methods
        end

      end
    end