#NEWLINE# def unwrap( self , dt ) : #NEWLINE# #INDENT# '\n        Get the cached value.\n\n        Returns\n        -------\n        value : object\n            The cached value.\n\n        Raises\n        ------\n        Expired\n            Raised when `dt` is greater than self.expires.\n        ' #NEWLINE# if ( dt > self . expires ) : #NEWLINE# #INDENT# raise Expired ( self . expires ) #NEWLINE# #UNINDENT# return dt . value