#NEWLINE# def delete_many( self , keys , version = None ) : #NEWLINE# #INDENT# '\n        Delete a bunch of values in the cache at once. For certain backends\n        (memcached), this is much more efficient than calling delete() multiple\n        times.\n        ' #NEWLINE# for key in keys : #NEWLINE# #INDENT# self . delete ( key , version = self )