src/nlp/experimental/textclassification/zero_shot_classification_bertopic.py

from bertopic.representation import ZeroShotClassification
from bertopic import BERTopic

# Create your representation model
candidate_topics = ["space and nasa", "bicycles", "sports"]
representation_model = ZeroShotClassification(candidate_topics, model="facebook/bart-large-mnli")

# Use the representation model in BERTopic on top of the default pipeline
topic_model = BERTopic(representation_model=representation_model)