Please Support /v2/smartpayment/qr/sessions

[Jane0220]

Is your feature request related to a problem? Please describe.
I want to use smartpay in my web pages, and I found the document here:
https://developer.paypay.ne.jp/products/docs/smartpayment
When I use the sdk, it does not support the function, and I try to change it by myself, I can't get the success result, and there is no smartpay related part in sdk document, please help me.

Describe the solution you'd like
Support the smartpay related request in the sdk.

Describe alternatives you've considered
If the sdk support the smartpay related request, I can try to use smartpay in my webpage.

Additional context