refactor: use snake case instead of camel case in types (#1894)

tests/shared/test_session.py

@@ -82,7 +82,7 @@ async def test_request_cancellation():
                 types.Tool(
                     name="slow_tool",
                     description="A slow tool that takes 10 seconds to complete",
-                    inputSchema={},
+                    input_schema={},
                 )
             ]
 
@@ -118,7 +118,7 @@ async def test_request_cancellation():
             await client_session.send_notification(
                 ClientNotification(
                     CancelledNotification(
-                        params=CancelledNotificationParams(requestId=request_id),
+                        params=CancelledNotificationParams(request_id=request_id),
                     )
                 )
             )