Return a new ``<pic:pic>`` element populated with the minimal
        contents required to define a viable picture element, based on the
        values passed as parameters.

def new(cls, pic_id, filename, rId, cx, cy):
        """
        Return a new ``<pic:pic>`` element populated with the minimal
        contents required to define a viable picture element, based on the
        values passed as parameters.
        """
        pic = parse_xml(cls._pic_xml())
        pic.nvPicPr.cNvPr.id = pic_id
        pic.nvPicPr.cNvPr.name = filename
        pic.blipFill.blip.embed = rId
        pic.spPr.cx = cx
        pic.spPr.cy = cy
        return pic