@property<EOL><INDENT>@memoize_method<EOL>def period(self):<DEDENT>
start_time = self.root.findtext('<STR_LIT>')<EOL>if start_time:<EOL><INDENT>return Period(text_to_time(start_time), text_to_time(self.root.findtext('<STR_LIT>')))<EOL><DEDENT>return Period(datetime.time(<NUM_LIT:0>, <NUM_LIT:0>), datetime.time(<NUM_LIT>, <NUM_LIT>))<EOL>
A Period tuple representing the daily start and end time.