# File lib/state_machine/machine.rb, line 348
      def draw(class_names, options = {})
        raise ArgumentError, 'At least one class must be specified' unless class_names && class_names.split(',').any?
        
        # Load any files
        if files = options.delete(:file)
          files.split(',').each {|file| require file}
        end
        
        class_names.split(',').each do |class_name|
          # Navigate through the namespace structure to get to the class
          klass = Object
          class_name.split('::').each do |name|
            klass = klass.const_defined?(name) ? klass.const_get(name) : klass.const_missing(name)
          end
          
          # Draw each of the class's state machines
          klass.state_machines.each_value do |machine|
            machine.draw(options)
          end
        end
      end