So far, it's an inactive feature in the TestFlight beta version of WhatsApp for iOS, but it would let you pick a time and date for when a message is sent in the app.

WhatsApp is reportedly working on a native message scheduling feature that would let users compose a text, choose a specific date and time, and have it sent automatically.

Meta will finally allow you to send scheduled messages on WhatsApp, but we'll have to wait a little longer for that.

Abstract: This paper presents an application of using Optuna for hyperparameter optimization in a context of improving the performance of an XGBoost model. The starting point from the baseline XGBoost ...