# services/referenz.py
from referenz_retrieval import find_matching_referenzstories

def get_referenzstory(challenge_text: str, tenant_id: int, top_k: int = 1):
    """Thin wrapper so the app has a stable API."""
    return find_matching_referenzstories(challenge_text, tenant_id=tenant_id, top_k=top_k)