Please I want to understand how to modify this example code (also attached here):
to be able to deal with a multivariable problem. Like, for instance, we have 3 time-series inputs (X1, X2, X3) and we need to:
1. forecast a single time-series target (Y)
2. forecast 2 time-series targets (Y1, Y2)
based on those 3 time-series inputs.