Function _get_empty_indexer

pandas/core/reshape/merge.py:2687–2692

Return empty join indexers.

()

def _get_empty_indexer() -> tuple[npt.NDArray[np.intp], npt.NDArray[np.intp]]:
    """Return empty join indexers."""
    return (
        np.array([], dtype=np.intp),
        np.array([], dtype=np.intp),
    )


def _get_no_sort_one_missing_indexer(