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