Function gltforge_root_node_index 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn gltforge_root_node_index(
    ptr: *const UnityGltf,
    slot: u32,
) -> u32

Return the node index of the slot-th root node. Returns u32::MAX if slot is out of range.

Safety

ptr must be a valid, non-null handle.