Describe the bug

The id attribute on StripeObject instances, like an instance of the Subscription object, when accessed, doesn't return a str containing the id, but instead a copy of the whole object.

To Reproduce

1. Set up a webhook on a customer.subscription.created event

2. in webhook:

   >>> event = stripe.Webhook.construct_event(request.body(), sig_header, <Secret>)
   >>> subscription = stripe.Subscription(event["data"]["object"])
   >>> subscription.id
   <Subscription subscription id=sub_....>

Expected behavior

1. Set up a webhook on a customer.subscription.created event

2. in webhook:

   >>> event = stripe.Webhook.construct_event(request.body(), sig_header, <Secret>)
   >>> subscription = stripe.Subscription(event["data"]["object"])
   >>> subscription.id
   "sub_..."

Code snippets

OS

Docker

Language version

Python 3.11

Library version

stripe-python 12.1.0

API version

2025-04-30

Additional context

No response