diff --git a/docs/source/cheat_sheet_py3.rst b/docs/source/cheat_sheet_py3.rst
index b8e43960fd09..6058a77b4f7c 100644
--- a/docs/source/cheat_sheet_py3.rst
+++ b/docs/source/cheat_sheet_py3.rst
@@ -215,6 +215,24 @@ Classes
    a.foo = 42  # Works
    a.bar = 'Ex-parrot'  # Fails type checking
 
+class User(BaseModel):
+    id:int
+    name:str = "John Doe"
+    signup_ts: datetime | None = None
+    friends: list[int] = []
+
+
+external_data = {
+    "id": '24',
+    "name": "John Doe",
+     "signup_ts": "2017-06-01 12:22",
+    "friends": [1, "2", b"3"]
+}
+user = User(**external_data)
+print(user)
+print(user.id)
+print(user.name)
+
 When you're puzzled or when things are complicated
 **************************************************