bigip_dns_helper.py 11.x wideip

For version 11.5 using f5 sdk I'm trying to create a wideip: python bigip_dns_helper.py --host=172.16.60.44 --user=pmohan --password=pmohan --action create_wideip --name --pool external_pool,internal_pool I get this error: Traceback (most recent call last): File "bigip_dns_helper.py", line 421, in dns_helper.create_wideip(options.name, pool_names) File "bigip_dns_helper.py", line 163, in create_wideip w = self.mgmt.tm.gtm.wideips.wideip.pool File "/Users/pmohan/f5-sdk/venv/lib/python2.7/site-packages/f5/bigip/mixins.py", line 95, in getattr raise LazyAttributesRequired(error_message)