def METHOD_NAME(self):
    if len(self.eval_splits) == 1:
        return self.plugin.prepare_dataloader(self.dataset["validation"], batch_size=self.eval_batch_size)
    elif len(self.eval_splits) > 1:
        return [
            self.plugin.prepare_dataloader(self.dataset[x], batch_size=self.eval_batch_size)
            for x in self.eval_splits
        ]