pub fn validators_root_proof(_block_root: Node) -> (Node, Vec<Node>) {
    let leaf = Node::try_from(
        hex!("8ada0d639d94919c8a8aa62f13bbf5f0a0bf3e4340aa01679e533a4f68a54dc0").as_slice(),
    )
    .unwrap();
    let branch = branch_from_bytes(
        [
            hex!("b27b100000000000000000000000000000000000000000000000000000000000"),
            hex!("e5da071085e819357fd4a416416e21fe9a679b382da47c5acb3abe5b756c1958"),
            hex!("2ed0e7ad478ad9368bf451f3df6ef082094e9dd2d830c441fae41ebfebc84dc4"),
            hex!("45f160b40030ff5f85164e1cae445f13360c820f5194f38d3ba7f0cad08cf573"),
            hex!("e6e49e7d4ebc221a8cc193b623a260de6c91fa8382e40dbd50ce6c898252545d"),
            hex!("34d8f1f1afe3c688cdc9a4b94bc50ffadc065df2156a60606c8e629a4ea55add"),
            hex!("9d1b8e00a8c76b185d2f4322432eee0d5797f1da0c4b9a9ab4d9ba04460b3ab9"),
            hex!("d2c3e8005d0f60900b02e681738404360529c5f28c34160abc3e639c651ec391"),
        ]
        .as_slice(),
    );

    (leaf, branch)
}
Returns the beacon block's validators root and a corresponding SSZ merkle proof.
crates/test-artifacts/programs/ssz-withdrawals/src/beacon/hints.rs