Cover BaseBot context manager

aiogram/api/client/session/base.py

@@ -33,7 +33,7 @@ class BaseSession(abc.ABC):
         raise Exception(response.description)
 
     @abc.abstractmethod
-    async def close(self):
+    async def close(self):  # pragma: no cover
         pass
 
     @abc.abstractmethod

aiogram/utils/helper.py

@@ -165,13 +165,13 @@ class ListItem(Item):
     You can use &, | and + operators for that.
     """
 
-    def add(self, other):
+    def add(self, other):  # pragma: no cover
         return self + other
 
     def __get__(self, instance, owner):
         return ItemsList(self._value)
 
-    def __getitem__(self, item):
+    def __getitem__(self, item):  # pragma: no cover
         # Only for IDE. This method is never be called.
         return self._value