Function lumen_nodelist_get 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn lumen_nodelist_get(
    list: LumenNodeList,
    index: usize,
    out: *mut LumenNode,
) -> LumenStatus

Read the handle at index in list, written to *out. Out-of-range (or null list) returns LumenStatus::ErrBadArg. The iteration primitive: walk 0..list.len. Thread-safe.

Safety

list must be a list returned by a query / children call and not yet freed.