#NEWLINE# def demonstrate_model_put_and_delete_hooks( ) : #NEWLINE# #INDENT# f = Friend ( ) #NEWLINE# f . name = 'Carole King' #NEWLINE# f . put ( ) #NEWLINE# ( yield fut ) #NEWLINE# fut = f . key . delete_async ( ) #NEWLINE# fut . get_result ( ) #NEWLINE# ( yield f )