Rasa custom tracker integration

I am trying to integrate rasa custom tracker using cassandra, I created a file called custom_tracker.py.

In endpoint.yml I added tracker_store: type: custom_tracker.CassandraCluster host: “localhost”

When I execute rasa run -m models --endpoints endpoints.yml, it is giving me UserWarning: Tracker store with type ‘custom_tracker.CassandraCluster’ not found. Using InMemoryTrackerStore instead

Please suggest me the approach.

Thank you, Swathi

Is custom_tracker.py in the root directory of your project?