Fix Python type errors

python/markupever/_display.py

@@ -12,7 +12,7 @@ def __init__(self, siblings: bool):
         self.siblings = siblings
         self.children = False
 
-    def __str__(self):
+    def __str__(self) -> str:
         # match (siblings, children)
         # (true, true) => "│   ",
         # (true, false) => "├── ",
@@ -42,15 +42,15 @@ def __init__(self, ignore_root: bool):
         self.tokens: list[_DisplayCharacterToken] = []
         self.ignore_root = ignore_root
 
-    def indent(self, siblings: bool):
+    def indent(self, siblings: bool) -> "_Indentation":
         length = len(self.tokens)
         if length > 0:
             self.tokens[length - 1].children = True
 
         self.tokens.append(_DisplayCharacterToken(siblings))
         return self
 
-    def deindent(self):
+    def deindent(self) -> "_Indentation":
         self.tokens.pop()
         return self
 

python/markupever/_rustlib/__init__.pyi

@@ -174,7 +174,7 @@ class QualName:
             "html", "xml", "xhtml", "xmlns", "xlink", "svg", "mathml", "*"
         ] = ...,
         prefix: str | None = ...,
-    ): ...
+    ) -> QualName: ...
     @property
     def local(self) -> str:
         """The local name (e.g. `table` in `<furn:table>` above)."""