fix cython type error

app/core/metainfo.py

@@ -1,5 +1,5 @@
 from pathlib import Path
-from typing import Tuple, List
+from typing import Tuple, List, Optional
 
 import regex as re
 
@@ -10,7 +10,7 @@ from app.log import logger
 from app.schemas.types import MediaType
 
 
-def MetaInfo(title: str, subtitle: str = None, custom_words: List[str] = None) -> MetaBase:
+def MetaInfo(title: str, subtitle: Optional[str] =  None, custom_words: List[str] = None) -> MetaBase:
     """
     根据标题和副标题识别元数据
     :param title: 标题、种子名、文件名
@@ -92,7 +92,8 @@ def is_anime(name: str) -> bool:
         return True
     if re.search(r'\s+-\s+[\dv]{1,4}\s+', name, re.IGNORECASE):
         return True
-    if re.search(r"S\d{2}\s*-\s*S\d{2}|S\d{2}|\s+S\d{1,2}|EP?\d{2,4}\s*-\s*EP?\d{2,4}|EP?\d{2,4}|\s+EP?\d{1,4}", name,
+    if re.search(r"S\d{2}\s*-\s*S\d{2}|S\d{2}|\s+S\d{1,2}|EP?\d{2,4}\s*-\s*EP?\d{2,4}|EP?\d{2,4}|\s+EP?\d{1,4}",
+                 name,
                  re.IGNORECASE):
         return False
     if re.search(r'\[[+0-9XVPI-]+]\s*\[', name, re.IGNORECASE):