v8.5.0b1

• #1246 Update generated code for beta

• #1239 Beta: Collapse HTTPClientAsync into HTTPClient

  • ⚠️ Removes the stripe.default_http_client_async global and the stripe.HTTPClientAsync class.
    • To set your own async-enabled http client, set stripe.default_http_client to a subclass of stripe.HTTPClient such as stripe.HTTPXClient that implements .request_async, .sleep_async, .request_stream_async, and .close_async.
    • The default http client of the library is still RequestsClient for synchronous methods, that "falls back" to a HTTPXClient when asynchronous methods are called.

See the changelog for more details.