Function lumen_node_component 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn lumen_node_component(
    node: LumenNode,
    name: *const c_char,
    out: *mut LumenKVList,
) -> LumenStatus

Field map of node’s name component. Free with lumen_kvlist_free. A non-whitelisted component name returns LumenStatus::ErrBadArg.