Function create_proof_zk 

pub fn create_proof_zk<H>(
    prover: &ZKProver<OptimalPackedB128, H>,
    witness: &ValueVec,
    message: Option<&[u8]>,
) -> Result<Vec<u8>>
where
    H: ParallelHashSuite,
    Output<H::LeafHash>: SerializeBytes + DeserializeBytes,

Run the ZK prover and return the raw proof transcript bytes.