Ensure that all args are an indexable type.

    Conversion runs lazily for dask objects, immediately otherwise.

    Parameters
    ----------
    args : array_like or scalar
    allow_scalars : bool, optional
        Whether to allow scalars in args. Default is False.

def to_indexable(*args, **kwargs):
    """Ensure that all args are an indexable type.

    Conversion runs lazily for dask objects, immediately otherwise.

    Parameters
    ----------
    args : array_like or scalar
    allow_scalars : bool, optional
        Whether to allow scalars in args. Default is False.
    """
    if kwargs.get("allow_scalars", False):
        indexable = _maybe_indexable
    else:
        indexable = _indexable
    for x in args:
        if x is None or isinstance(x, (da.Array, dd.DataFrame)):
            yield x
        elif is_dask_collection(x):
            yield delayed(indexable, pure=True)(x)
        else:
            yield indexable(x)