Create and return a standalone, default notes master part based on
        the built-in template (without any related parts, such as theme).

def _new(cls, package):
        """
        Create and return a standalone, default notes master part based on
        the built-in template (without any related parts, such as theme).
        """
        partname = PackURI('/ppt/notesMasters/notesMaster1.xml')
        content_type = CT.PML_NOTES_MASTER
        notesMaster = CT_NotesMaster.new_default()
        return NotesMasterPart(partname, content_type, notesMaster, package)