Issue in metrics.py function weighted_dice_coefficient

[ulfathussainulfat]

Thanks for the sharing. I am facing issue in function "weighted_dice_coefficient" of metrics.py.
TypeError: Input 'y' of 'Mul' Op has type float32 that does not match type int8 of argument 'x'.

I printed the y_true and y_pred and found that
printing y_true in console = Tensor("IteratorGetNext:1", shape=(None, None, None, None, None), dtype=int8)
printing y_pred in console = Tensor("model/activation/Sigmoid:0", shape=(None, 3, 128, 128, 128), dtype=float32)
printing y_true.shape in console = (None, None, None, None, None)
printing y_pred.shape in console = (None, 3, 128, 128, 128)
Please see the error screenshot

Can you please help in this regard