Расшифровка звонков из CRM и телефонии через API

import hashlibimport hmacimport osimport time import requestsfrom flask import Flask, abort, request app = Flask(__name__)API_BASE = os.environ["API_BASE"]API_KEY = os.environ["AUDIO2TEXT_API_KEY"]WEBHOOK_SECRET = os.environ["WEBHOOK_SECRET"]  # whsec_..., показывается один раз def signature_ok(raw_body: bytes, header: str) -> bool:    if not header:        return False    parts = dict(item.split("=", 1) for item in header.split(","))    if abs(time.time() - int(parts.get("t", 0))) > 300:        return False    signed = f"{parts['t']}.".encode() + raw_body    expected = hmac.new(WEBHOOK_SECRET.encode(), signed, hashlib.sha256).hexdigest()    return hmac.compare_digest(expected, parts.get("v1", "")) @app.post("/webhooks/transcription")def transcription_webhook():    if not signature_ok(request.get_data(), request.headers.get("Transcripta-Signature", "")):        abort(401)    event = request.get_json()    if event["type"] == "transcription.completed":        task_id = event["data"]["transcription_id"]        result = requests.get(            f"{API_BASE}/v1/transcriptions/{task_id}/result",            headers={"Authorization": f"Bearer {API_KEY}"},        ).json()["data"]        call_id = result["metadata"]["external_id"]        save_to_crm(call_id, result["segments"], result["summary"])  # ваш код записи в CRM    return "", 204