#NEWLINE# def stop_instance( self , ctxt , instance , do_cast = True , clean_shutdown = True ) : #NEWLINE# #INDENT# 'Stop an instance in its cell.' #NEWLINE# response = self . msg_runner . stop_instance ( ctxt , instance , do_cast = do_cast , clean_shutdown = clean_shutdown ) #NEWLINE# if ( not response ) : #NEWLINE# #INDENT# return response . value_or_raise ( )