From 04a44afbff396038fef23e8358d3f94af7a171aa Mon Sep 17 00:00:00 2001
From: Ryan Gunderson <ryan.lee.gunderson@gmail.com>
Date: Fri, 17 Sep 2021 21:41:06 -0400
Subject: [PATCH] Correct example annotation `self`

Add needed `covariant=True` for example to pass type checking at `page.first_chunk()` as intended.
---
 docs/source/more_types.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/source/more_types.rst b/docs/source/more_types.rst
index cff1234b39d39..2d99cdc7bef68 100644
--- a/docs/source/more_types.rst
+++ b/docs/source/more_types.rst
@@ -614,7 +614,7 @@ argument is itself generic:
 
 .. code-block:: python
 
-  T = TypeVar('T')
+  T = TypeVar('T', covariant=True)
   S = TypeVar('S')
 
    class Storage(Generic[T]):