How to build a dataloaders for training RNN model

i’m implementating this paper https://arxiv.org/abs/2104.07391
This RNN model receives (1xsequencex7) input and outputs (1xsequencex4) output.

I have created an rnn model architecture and i have taining data too, but I don’t know how to create a dataset for training.
i present model architecture
how can i create a dataloaders for training RNN model