#NEWLINE# @ classmethod #NEWLINE# def execute( cls , instance , async = True , **kwargs ) : #NEWLINE# #INDENT# if ( 'updated_fields' not in kwargs ) : #NEWLINE# #INDENT# raise ExecutorException ( 'updated_fields keyword argument should be defined for UpdateExecutor.' ) #NEWLINE# #UNINDENT# super ( UpdateExecutor , cls ) . execute ( instance , async = async , ** kwargs )