Function leaf_proof 

pub async fn leaf_proof<R: NodeReader>(
    reader: &R,
    view: &AlgView,
    alg_id: u64,
    index: u64,
    tree_size: u64,
    global_size: u64,
    arity: u64,
) -> Result<Option<LeafProof>, R::Error>

Produce a self-contained spine::LeafProof for index in a tree of size tree_size. Returns None when no inclusion proof exists.

Errors

Propagates Error from the node reads.