574     def iterkeys(d, **kw):  argument
575         return iter(d.keys(**kw))
577     def itervalues(d, **kw):  argument
578         return iter(d.values(**kw))
580     def iteritems(d, **kw):  argument
581         return iter(d.items(**kw))
583     def iterlists(d, **kw):  argument
584         return iter(d.lists(**kw))
592     def iterkeys(d, **kw):  argument
593         return d.iterkeys(**kw)
595     def itervalues(d, **kw):  argument
596         return d.itervalues(**kw)
598     def iteritems(d, **kw):  argument
599         return d.iteritems(**kw)
601     def iterlists(d, **kw):  argument
602         return d.iterlists(**kw)