diff --git a/PythonProject/schema/cla_schema.py b/PythonProject/schema/cla_schema.py
index dc338e7..dad7082 100644
--- a/PythonProject/schema/cla_schema.py
+++ b/PythonProject/schema/cla_schema.py
@@ -13,13 +13,14 @@ class claRequest(BaseModel):
 
 class claResponse(BaseModel):
 
-    code:int = 200
+    code: int = 200
 
-    detail:str = 'ok'
+    detail: str = 'ok'
 
-    class_name = str
+    class_name: str | None = None
 
-    head_teacher_id = int
+    head_teacher_id: int | None = None
+
+    class_teacher_id: int | None = None
 
-    class_teacher_id = int