Function isel_indexes

xarray/core/indexes.py:2207–2218

(
    indexes: Indexes[Index],
    indexers: Mapping[Any, Any],
)

def isel_indexes(
    indexes: Indexes[Index],
    indexers: Mapping[Any, Any],
) -> tuple[dict[Hashable, Index], dict[Hashable, Variable]]:
    # Fast path function _apply_indexes_fast does not work with multi-coordinate
    # Xarray indexes (see https://github.com/pydata/xarray/issues/10063).
    # -> call it only in the most common case where all indexes are default
    # PandasIndex each associated to a single 1-dimensional coordinate.
    if any(type(idx) is not PandasIndex for idx in indexes._indexes.values()):
        return _apply_indexes(indexes, indexers, "isel")
    else:
        return _apply_indexes_fast(indexes, indexers, "isel")


def roll_indexes(