def method_missing(method, *args, &code)
    success = false
    result  = nil

    if method.to_s.match(/^set\_([a-z].*)$/)
      name = $1.to_sym

      if @types.has_key?(name) && args.length > 2
        @types[name].set([ args[0], args[1] ], args[2]) if args.length > 2
        success = true
      end

    elsif method.to_s.match(/^remove\_([a-z].*)$/)
      name = $1.to_sym

      if @types.has_key?(name) && args.length > 0
        @types[name].delete([ args[0], args[1] ])
        success = true
      end

    else
      name = @plurals[method.to_sym]

      if name && @types.has_key?(name)
        result  = @types[name]
        success = true
      end
    end
    super unless success # Raise NoMethodError
    result
  end
def method_missing(method, *args, &code)
    success = false
    result  = nil

    if method.to_s.match(/^set\_([a-z].*)$/)
      name = $1.to_sym

      if @types.has_key?(name) && args.length > 2
        @types[name].set([ args[0], args[1] ], args[2]) if args.length > 2
        success = true
      end

    elsif method.to_s.match(/^remove\_([a-z].*)$/)
      name = $1.to_sym

      if @types.has_key?(name) && args.length > 0
        @types[name].delete([ args[0], args[1] ])
        success = true
      end

    else
      name = @plurals[method.to_sym]

      if name && @types.has_key?(name)
        result  = @types[name]
        success = true
      end
    end
    super unless success # Raise NoMethodError
    result
  end
-----------------------------------------------------------------------------
 Addon build types