Problem to get BigIQ license pool list

Running BiGIP 5.4.0 and f5-sdk 3.0.14 to get the license pool list Using the git tests example:

https://github.com/F5Networks/f5-common-python/blob/development/f5/bigiq/cm/shared/licensing/test/functional/test_pools.py

running the command: pools = mgmt_root.cm.shared.licensing.pools_s.get_collection() No answer from the BigIQ

running the command: pools = mgmt_root.cm.shared.licensing.pools_s.get_collection return object f5.bigiq.cm.shared.licensing.pools.Pools_s object at 0x000001BFB7EC54A8>>

but I can't iterate it - TypeError: 'method' object is not iterable