✨ Feature: 支持 PEP 695 类型别名 (#3621)

nonebot/typing.py

@@ -99,6 +99,17 @@ def is_none_type(type_: type[t.Any]) -> bool:
     return type_ in NONE_TYPES
 
 
+if sys.version_info < (3, 12):
+
+    def is_type_alias_type(type_: type[t.Any]) -> bool:
+        """判断是否是 TypeAliasType 类型"""
+        return isinstance(type_, t_ext.TypeAliasType)
+else:
+
+    def is_type_alias_type(type_: type[t.Any]) -> bool:
+        return isinstance(type_, (t.TypeAliasType, t_ext.TypeAliasType))
+
+
 def evaluate_forwardref(
     ref: t.ForwardRef, globalns: dict[str, t.Any], localns: dict[str, t.Any]
 ) -> t.Any: