Email me Google reviews I haven't replied to

from datetime import datetime, timezone
from clickruntime import on_trigger, credentials, http, notify, report_fetched

LOCATION = "accounts/1234567890/locations/9876543210"  # Rosa's Bakery
STARS = {"ONE": 1, "TWO": 2, "THREE": 3, "FOUR": 4, "FIVE": 5}

@on_trigger
def run(event):
    reviews, token = [], None
    while True:
        resp = http.get(f"https://mybusiness.googleapis.com/v4/{LOCATION}/reviews",
                        params={"pageSize": 50, "pageToken": token},
                        headers={"Authorization": f"Bearer {credentials.connection('google', 'work')}"})
        resp.raise_for_status()
        data = resp.json()
        reviews += data.get("reviews", [])
        token = data.get("nextPageToken")
        if not token:
            break
    open_ = [r for r in reviews if not r.get("reviewReply")]
    report_fetched(len(open_))
    if not open_:
        return {"unanswered": 0}
    now = datetime.now(timezone.utc)
    blocks = []
    for r in sorted(open_, key=lambda r: (STARS[r["starRating"]], r["createTime"])):
        s = STARS[r["starRating"]]
        age = (now - datetime.fromisoformat(r["createTime"].replace("Z", "+00:00"))).days
        text = f"\n\"{r['comment']}\"" if r.get("comment") else " · (no text)"
        blocks.append(f"{'★' * s}{'☆' * (5 - s)} {r['reviewer']['displayName']} · {age} days ago{text}")
    notify.email_me(f"{len(open_)} Google reviews without a reply",
                    "\n\n".join(blocks) + "\n\nReply at https://business.google.com/reviews")
    return {"unanswered": len(open_)}