Function secp256k1zkp::aggsig::add_signatures_single

pub fn add_signatures_single(
    secp: &Secp256k1, 
    sigs: Vec<&Signature>, 
    pubnonce_total: &PublicKey
) -> Result<Signature, Error>

Single-Signer addition of Signatures Returns: Ok(Signature) on success In: sig1: sig1 to add sig2: sig2 to add pubnonce_total: sum of public nonces