addition to Mail_mimePart

Hi, PEAR gurus! I have been recently using Mail_mimePart class a lot. It works fabulous except when composing messages that have MIME structure several levels deep. I can use addSubPart() in some of the cases, but more often I need to prepare a mime part, and then attach it to an existing parent multipart. Otherwise things become really cumbersome. I solved that by doing an ugly thing like this: $whole_email->_subparts[] = $another_part; But I'd rather not access private members directly and have a function to do just that. The function does exactly the same thing as already existing addSubPart(). Please, tell me if that sounds good, bad, or if I am missing something obvious (any feedback is welcome). Also, see if you can find a better name for the function. If there are no objections, I will apply this sometime soon. Thanks!