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# Licensed under the Apache License, Version 2.0 (the "License");
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# http://www.apache.org/licenses/LICENSE-2.0
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import torch

from earth2studio.utils.coords import CoordSystem


class PrognosticMixin:
    """This utility adds the ability to call hooks into a prognostic iterator."""

    def _default_hook(
        self, x: torch.Tensor, coords: CoordSystem
    ) -> tuple[torch.Tensor, CoordSystem]:
        return x, coords

    front_hook = _default_hook
    rear_hook = _default_hook
