[PATCH] qapi/parser: Fix type hints

[Markus Armbruster]

Fixes: 3e32dca3f0d1 (qapi: Rewrite parsing of doc comment section symbols and 
tags)
Signed-off-by: Markus Armbruster <arm...@redhat.com>
---
 scripts/qapi/parser.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/qapi/parser.py b/scripts/qapi/parser.py
index 4923a59d60..9315412ab2 100644
--- a/scripts/qapi/parser.py
+++ b/scripts/qapi/parser.py
@@ -563,11 +563,11 @@ def end_comment(self) -> None:
         self._switch_section(QAPIDoc.NullSection(self._parser))
 
     @staticmethod
-    def _match_at_name_colon(string: str) -> re.Match:
+    def _match_at_name_colon(string: str) -> Optional[re.Match[str]]:
         return re.match(r'@([^:]*): *', string)
 
     @staticmethod
-    def _match_section_tag(string: str) -> re.Match:
+    def _match_section_tag(string: str) -> Optional[re.Match[str]]:
         return re.match(r'(Returns|Since|Notes?|Examples?|TODO): *', string)
 
     def _append_body_line(self, line: str) -> None:
-- 
2.39.2