diff --git a/nonebot/adapters/_base.py b/nonebot/adapters/_base.py
index c4846088..c2bf5062 100644
--- a/nonebot/adapters/_base.py
+++ b/nonebot/adapters/_base.py
@@ -251,8 +251,8 @@ class MessageSegment(Mapping, abc.ABC, Generic[T_Message]):
     - 说明: 消息段数据
     """
 
-    @abc.abstractmethod
     @classmethod
+    @abc.abstractmethod
     def get_message_class(cls) -> Type[T_Message]:
         raise NotImplementedError
 
@@ -330,8 +330,8 @@ class Message(List[T_MessageSegment], abc.ABC):
         else:
             self.extend(self._construct(message))
 
-    @abc.abstractmethod
     @classmethod
+    @abc.abstractmethod
     def get_segment_class(cls) -> Type[T_MessageSegment]:
         raise NotImplementedError
 
diff --git a/nonebot/plugin/manager.py b/nonebot/plugin/manager.py
index 51091274..7b9026ca 100644
--- a/nonebot/plugin/manager.py
+++ b/nonebot/plugin/manager.py
@@ -93,7 +93,7 @@ class PluginManager:
         if not prefix.startswith(_internal_space.__name__):
             prefix = _internal_space.__name__
         module = _InternalModule(prefix, self)
-        sys.modules[module.__name__] = module
+        sys.modules[module.__name__] = module  # type: ignore
         setattr(_internal_space, internal_id, module)
         return module
 
@@ -177,11 +177,11 @@ class PluginFinder(MetaPathFinder):
                 newname = manager._rewrite_module_name(fullname)
                 if newname:
                     spec = PathFinder.find_spec(
-                        newname, [*manager.search_path, *(path or sys.path)],
+                        newname, path or [*manager.search_path, *sys.path],
                         target)
                     if spec:
-                        spec.loader = PluginLoader(manager, newname,
-                                                   spec.origin)
+                        spec.loader = PluginLoader(  # type: ignore
+                            manager, newname, spec.origin)
                         return spec
                 index -= 1
         return None
diff --git a/packages/nonebot-adapter-mirai/nonebot/adapters/mirai/message.py b/packages/nonebot-adapter-mirai/nonebot/adapters/mirai/message.py
index 48bfb179..6d061ccb 100644
--- a/packages/nonebot-adapter-mirai/nonebot/adapters/mirai/message.py
+++ b/packages/nonebot-adapter-mirai/nonebot/adapters/mirai/message.py
@@ -289,19 +289,6 @@ class MessageChain(BaseMessage[MessageSegment]):
                 f'Type {type(message).__name__} is not supported in mirai adapter.'
             )
 
-    @overrides(BaseMessage)
-    def reduce(self):
-        """
-        :说明:
-
-          忽略为空的消息段, 合并相邻的纯文本消息段
-        """
-        for index, segment in enumerate(self):
-            segment: MessageSegment
-            if segment.is_text() and not str(segment).strip():
-                self.pop(index)
-        super().reduce()
-
     @overrides(BaseMessage)
     def _construct(
         self, message: Union[List[Dict[str, Any]], Iterable[MessageSegment]]