Unable to monitor data for objects, such as pool objects

bts = BitShares(node='wss://api.btslebin.com/ws')
n = Notify(
objects=['1.19.61', '1.19.48', '1.19.122', '1.19.62', '1.19.69', '1.19.57','1.19.121'],
on_account=pprint,
blockchain_instance=bts
)
n.listen()

It cannot capture object data about the pool when it is updated at runtime.