Create custom Tensorflow dataset .tiff files

Question

I am new on Tensorflow, and I would like to create a custom dataset for using ESRGAN next.

The issues I meet are :

• I have (low_resolution, high_resolution) images as couple of data
• All my images are .tiff files
• I want to create batches of size 8 with this dataset, to further use the train_step(self, batch) function of Tensorflow: to be clearer, I want it to iter automatically at each epoch on every batch of 8

Ideally, I would like it to be made in the same way as the tensorflow_datasets module (tfds)

How can I instantiate a classe / create a class to do so ?

Thanks for your help