#NEWLINE# def instance_keys( self , obj ) : #NEWLINE# #INDENT# meta = obj . _meta #NEWLINE# keys = [ self . basekey ( meta , OBJ , obj . pkvalue ( ) ) ] #NEWLINE# for field in meta . multifields : #NEWLINE# #INDENT# f = getattr ( obj , field . attname ) #NEWLINE# be = self . structure ( f ) #NEWLINE# keys . append ( be . id ) #NEWLINE# #UNINDENT# return keys