diff --git a/scripts/test_telegram_ingestion.py b/scripts/test_telegram_ingestion.py
index 23f33d1..442788a 100644
--- a/scripts/test_telegram_ingestion.py
+++ b/scripts/test_telegram_ingestion.py
@@ -11,6 +11,7 @@
 """
 
 import sys
+from collections.abc import Mapping
 from datetime import datetime, timedelta
 from pathlib import Path
 from typing import Any
@@ -44,7 +45,7 @@ def _get_channel_config_value(channel: Any, field: str, default: Any) -> Any:
 from src.adapters.sqlite_repository import SQLiteRepository
 from src.adapters.telegram_client import TelegramClient
 from src.config.settings import get_settings
-from src.domain.models import MessageSource
+from src.domain.models import MessageSource, TelegramChannelConfig
 from src.domain.protocols import MessageClientProtocol
 from src.use_cases.ingest_telegram_messages import ingest_telegram_messages_use_case