Cognito-Idp: I see 'code_delivery_details' is nil when signingUp.

[Bert Blommers]

Discussed in #7701

^{Originally posted by atharnoor2 May 16, 2024}
I'm using moto via Docker and have setup Lambda, UserPool and client. When I signup a new user in the pool, I see the code_delivery_details is always return as nil. Incase of ForgotPassword, it does turn code_delivery_details in response. Is this something not supported for signUp at the moment ?