Hello. I want to use keras for time series forecasting. When forecasting, I hope that the forecast result at time t will be used as the input at time t+1. So when I want to train, I hope to use the output at time t as the input at time t+1. May I ask how it can be implemented in keras. Or how can it be achieved with tensorflow. The desired effect is shown in the figure.https://user-images.githubusercontent.com/52521165/127980768-1e6ae109-5761-46ca-8c43-50ccd103d8c8.png 5