Traceback (most recent call last):
  File "starlette/applications.py", line 113, in __call__
    await self.middleware_stack(scope, receive, send)
  File "starlette/middleware/errors.py", line 186, in __call__
    raise exc
  File "starlette/middleware/errors.py", line 164, in __call__
    await self.app(scope, receive, _send)
  File "/app/server/.venv/lib/python3.12/site-packages/opentelemetry/instrumentation/asgi/__init__.py", line 768, in __call__
    await self.app(scope, otel_receive, otel_send)
  File "starlette/middleware/errors.py", line 186, in __call__
    raise exc
  File "starlette/middleware/errors.py", line 164, in __call__
    await self.app(scope, receive, _send)
  File "polar/kit/cors.py", line 55, in __call__
    await self.app(scope, receive, send)
  File "polar/middlewares.py", line 27, in __call__
    await self.app(scope, receive, send)
  File "polar/middlewares.py", line 72, in __call__
    await self.app(scope, receive, send)
  File "polar/postgres.py", line 67, in __call__
    await self.app(scope, receive, send)
  File "polar/middlewares.py", line 42, in __call__
    await self.app(scope, receive, send)
  File "polar/auth/middlewares.py", line 159, in __call__
    await self.app(scope, receive, send)
  File "ratelimit/core.py", line 96, in __call__
    return await self.app(scope, receive, send)
  File "polar/middlewares.py", line 106, in __call__
    await self.app(scope, receive, send_wrapper)
  File "starlette/middleware/exceptions.py", line 63, in __call__
    await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
  File "starlette/_exception_handler.py", line 53, in wrapped_app
    raise exc
  File "starlette/_exception_handler.py", line 42, in wrapped_app
    await app(scope, receive, sender)
  File "starlette/routing.py", line 716, in __call__
    await self.middleware_stack(scope, receive, send)
  File "starlette/routing.py", line 736, in app
    await route.handle(scope, receive, send)
  File "starlette/routing.py", line 290, in handle
    await self.app(scope, receive, send)
  File "starlette/routing.py", line 78, in app
    await wrap_app_handling_exceptions(app, request)(scope, receive, send)
  File "starlette/_exception_handler.py", line 53, in wrapped_app
    raise exc
  File "starlette/_exception_handler.py", line 42, in wrapped_app
    await app(scope, receive, sender)
  File "starlette/routing.py", line 75, in app
    response = await f(request)
  File "fastapi/routing.py", line 302, in app
    raw_response = await run_endpoint_function(
  File "logfire/_internal/integrations/fastapi.py", line 143, in patched_run_endpoint_function
    return await instrumentation.run_endpoint_function(
  File "logfire/_internal/integrations/fastapi.py", line 301, in run_endpoint_function
    return await original
  File "fastapi/routing.py", line 213, in run_endpoint_function
    return await dependant.call(**values)
  File "polar/kit/routing.py", line 37, in wrapped_endpoint
    response = await endpoint(*args, **kwargs)
  File "polar/kit/routing.py", line 37, in wrapped_endpoint
    response = await endpoint(*args, **kwargs)
  File "polar/kit/routing.py", line 37, in wrapped_endpoint
    response = await endpoint(*args, **kwargs)
  File "polar/discount/endpoints.py", line 124, in update
    return await discount_service.update(session, discount, discount_update)
  File "polar/discount/service.py", line 253, in update
    if value != getattr(discount, attr):
AttributeError: 'DiscountPercentage' object has no attribute 'amount'