how to use REST API using F5 SDK

[root@localhost f5] ipython test2.py {u'reference': {u'link': u''}} {u'reference': {u'link': u''}} {u'reference': {u'link': u''}} {u'reference': {u'link': u''}} {u'reference': {u'link': u''}} {u'reference': {u'link': u''}} {u'reference': {u'link': u''}} {u'reference': {u'link': u''}} {u'reference': {u'link': u''}} {u'reference': {u'link': u''}} {u'reference': {u'link': u''}} {u'reference': {u'link': u''}} {u'reference': {u'link': u''}} {u'reference': {u'link': u''}} {u'reference': {u'link': u''}} {u'reference': {u'link': u''}} {u'reference': {u'link': u''}} {u'reference': {u'link': u''}} rest-api-07 pwlpR2LJzxplAjAR3lp10g tm:asm:policies:policystate

UnsupportedOperation Traceback (most recent call last) /home/jaekim711/f5/test2.py in () 21 print p_object.allowedResponseCodes 22 policy=mgmt.tm.asm.policies_s.policy.load(id=p_object.id) ---> 23 policy.update(description="bar", learningMode="automatic") 24 25

/usr/lib/python2.7/site-packages/f5/bigip/resource.pyc in update(self, **kwargs) 1286 """ 1287 raise UnsupportedOperation( -> 1288 "%s does not support the update method" % self.__class__.__name__ 1289 ) 1290

UnsupportedOperation: Policy does not support the update method