diff --git a/proxy/base_proxy.py b/proxy/base_proxy.py
index 9294008..4412f01 100644
--- a/proxy/base_proxy.py
+++ b/proxy/base_proxy.py
@@ -10,7 +10,7 @@ from typing import List
 import config
 from cache.abs_cache import AbstractCache
 from cache.cache_factory import CacheFactory
-from tools import utils
+from tools.utils import utils
 
 from .types import IpInfoModel
 
@@ -27,7 +27,8 @@ class ProxyProvider(ABC):
         :param num: 提取的 IP 数量
         :return:
         """
-        pass
+        raise NotImplementedError
+
 
 
 class IpCache:
diff --git a/tools/crawler_util.py b/tools/crawler_util.py
index c17fc45..568b221 100644
--- a/tools/crawler_util.py
+++ b/tools/crawler_util.py
@@ -13,8 +13,6 @@ import httpx
 from PIL import Image, ImageDraw
 from playwright.async_api import Cookie, Page
 
-from proxy import IpInfoModel
-
 from . import utils
 
 
@@ -137,7 +135,7 @@ def match_interact_info_count(count_str: str) -> int:
         return 0
 
 
-def format_proxy_info(ip_proxy_info: IpInfoModel) -> Tuple[Optional[Dict], Optional[Dict]]:
+def format_proxy_info(ip_proxy_info) -> Tuple[Optional[Dict], Optional[Dict]]:
     """format proxy info for playwright and httpx"""
     playwright_proxy = {
         "server": f"{ip_proxy_info.protocol}{ip_proxy_info.ip}:{ip_proxy_info.port}",