u

        return self._list.keys()

    #

    def __setitem__(self,this,that) :

        print(type(that),type(cookie()),type(that)==type(cookie()))

        if type(that) != type({}) and type(that) != type(cookie()) :

            raise Exception(f'content of {this} must be a dictionary or a cookie')

        if type(that) == type({}) :

            ic=cookie()

            ic.from_dict(that)

            self._list[this]=ic

        else :

            self._list[this]=that

            ic=that

        if this is None :

            n=ic.name

        elif type(this)!=type('') :

            raise Exception('this must be a string')

        elif this.strip() == '' :

            n=ic.name

        else :

            n=this.strip()

        self._list[n]=ic

    #

    def __getitem__(self,this) :

        if type(this) == type(int) :