keras/src/trainers/data_adapters/py_dataset_adapter.py/PyDatasetEnqueuer/get
class PyDatasetEnqueuer:    def get(self):
        """Creates a generator to extract data from the queue.

        Skip the data if it is `None`.

        Returns:
            Generator yielding tuples `(inputs, targets)`
                or `(inputs, targets, sample_weights)`.
        """
        raise NotImplementedError