Function physical_indices_for_take 

fn physical_indices_for_take<T: RunEndIndexType, I: ArrowPrimitiveType>(
    run_array: &RunArray<T>,
    logical_indices: &PrimitiveArray<I>,
) -> Result<Vec<Option<usize>>, ArrowError>

Physical run index for each logical take slot.

None means the logical index is null. Only valid indices are passed to [RunArray::get_physical_indices]; a null slot’s backing integer is ignored and may be out of range.