Function polars_arrow::kernels::take_agg::take_agg_primitive_iter_unchecked_count_nulls

pub unsafe fn take_agg_primitive_iter_unchecked_count_nulls<T: NativeType, I: IntoIterator<Item = usize>, F: Fn(T, T) -> T>(
    arr: &PrimitiveArray<T>, 
    indices: I, 
    f: F, 
    init: T
) -> Option<(T, u32)>

Take kernel for single chunk and an iterator as index.

Safety

caller must enure iterators indexes are in bounds