Function ckb_multisig::secp256k1::verify_m_of_n

pub fn verify_m_of_n<S>(
    message: &Message, 
    m_threshold: usize, 
    sigs: &[Signature], 
    pks: &HashSet<Pubkey, S>
) -> Result<(), Error> where
    S: BuildHasher, 

Verifies m of n signatures.

Example 2 of 3 sigs: [s1, s3], pks: [pk1, pk2, pk3]