Diff Coverage

    ) -> None:
        """Initialize the shared attention and convolution backend."""
        super().__init__()
        # The target owns this executor, so keep its back-reference outside the module tree.
        object.__setattr__(self, "module", module)
        backend = backend.lower()
        if backend not in _GDN_BACKENDS:
            raise ValueError(
                f"unsupported GDN backend {backend!r}; "

        chunk_size: int = 64,
    ):
        super().__init__()
        # The target owns this executor, so keep its back-reference outside the module tree.
        object.__setattr__(self, "module", module)
        backend = backend.lower()
        if backend == "ascendc":
            raise NotImplementedError("GDN Ascend C state P2P is not supported; select the pure Ulysses wrapper.")
        if backend not in _GDN_BACKENDS: