How to use the eth-sig-util.concatSig function in eth-sig-util

function signatureDigest (hashed, priv) {
  let buffedHash = byteArrToBuffer(hashed)
  let buffedPriv = byteArrToBuffer(priv)
  // let toBuffer = EthUtil.toBuffer(hashed)
  let ecSigned = EthUtil.ecsign(buffedHash, buffedPriv)
  let rpcSig = EthUtil.bufferToHex(sigUtil.concatSig(ecSigned.v, ecSigned.r, ecSigned.s))
  let rpcSigInByte = hexToByteArr(rpcSig)
  debug(`low level signature signed by private key is: ${rpcSigInByte}`)
  return rpcSigInByte
}

var signatureRPC = EthUtil.toRpcSig(signature.v, signature.r, signature.s)

//console.log(signatureRPC);

//alice.priv in buffer
const alicePriv = Buffer.from( new Uint8Array([165, 253, 5, 87, 255, 90, 198, 97, 236, 75, 74, 205, 119, 102, 148, 243, 213,
  102, 3, 104, 36, 251, 206, 152, 50, 114, 92, 65, 154, 84, 48, 47]))

//hashed in buffer

const hashedValue = Buffer.from( new Uint8Array([41, 144, 16, 100, 71, 248, 218, 223, 141, 45, 112, 193, 233, 207, 77, 182, 81,
    153, 105, 181, 171, 62, 167, 202, 94, 82, 96, 151, 227, 31, 188, 58]))

//call ECsign
var ecSigned = EthUtil.ecsign(hashedValue, alicePriv); 
var rpcSig = EthUtil.bufferToHex(sigUtil.concatSig(ecSigned.v, ecSigned.r, ecSigned.s))
//var rpcSig = EthUtil.toRpcSig(ecSigned.v, ecSigned.r, ecSigned.s)



console.log(rpcSig)

//output
//0xb35ee74243c506d32451097501d3ee45b103e4ab61a5c51fd1586c7841e6344a3f046ef6f2597a9f5f65d448eea16506503f4292961ee128890662e1b1bc556ebaf39add708bb2c00
//0xb35ee74243c506d32451097501d3ee45b103e4ab61a5c51fd1586c7841e6344a3f046ef6f2597a9f5f65d448e961ee128890662e1b1bc556ebaf39add708bb2c1b
//expected output from elixir
//179, 94, 231, 66, 67, 197, 6, 211, 36, 81, 9, 117, 1, 211, 238, 69, 177, 3, 228, 171, 97, 165, 197, 31, 209, 88, 108, 120, 65, 230, 52, 74, 63, 4, 110, 246, 242, 89, 122, 159, 95, 101, 212, 72, 233, 97, 238, 18, 136, 144, 102, 46, 27, 27, 197, 86, 235, 175, 57, 173, 215, 8, 187, 44, 27
//179, 94, 231, 66, 67, 197, 6, 211, 36, 81, 9, 117, 1, 211, 238, 69, 177, 3, 228, 171, 97, 165, 197, 31, 209, 88, 108, 120, 65, 230, 52, 74, 63, 4, 110, 246, 242, 89, 122, 159, 95, 101, 212, 72, 233, 97, 238, 18, 136, 144, 102, 46, 27, 27, 197, 86, 235, 175, 57, 173, 215, 8, 187, 44, 27

//output after converting JS
//179, 94, 231, 66, 67, 197, 6, 211, 36, 81, 9, 117, 1, 211, 238, 69, 177, 3, 228, 171, 97, 165, 197, 31, 209, 88, 108, 120, 65, 230, 52, 74, 63, 4, 110, 246, 242, 89, 122, 159, 95, 101, 212, 72, 238, 161, 101, 6, 80, 63, 66, 146, 150, 30, 225, 40, 137, 6, 98, 225, 177, 188, 85, 110, 186, 243, 154, 221, 112, 139, 178, 192

function signTypedData (typedData, privateKey) {
  const hash = hashTypedData(typedData)
  const sig = ethUtil.ecsign(hash, privateKey)
  return ethSigUtil.concatSig(sig.v, sig.r, sig.s)
}

newGethSignMessage (withAccount, msgHex, opts = {}) {
    const privKey = this.getPrivateKeyFor(withAccount, opts);
    const msgBuffer = ethUtil.toBuffer(msgHex)
    const msgHash = ethUtil.hashPersonalMessage(msgBuffer)
    const msgSig = ethUtil.ecsign(msgHash, privKey)
    const rawMsgSig = ethUtil.bufferToHex(sigUtil.concatSig(msgSig.v, msgSig.r, msgSig.s))
    return Promise.resolve(rawMsgSig)
  }

signMessage (address, data, opts = {}) {
    const message = ethUtil.stripHexPrefix(data)
    const privKey = this.getPrivateKeyFor(address, opts);
    var msgSig = ethUtil.ecsign(new Buffer(message, 'hex'), privKey)
    var rawMsgSig = ethUtil.bufferToHex(sigUtil.concatSig(msgSig.v, msgSig.r, msgSig.s))
    return Promise.resolve(rawMsgSig)
  }

function ecSign (tosign, privateKey) {
  const message = (tosign.length === 66) ? tosign.substring(2) : msgHashHex
  const signed = ethUtil.ecsign(
    Buffer.from(message, 'hex'),
    Buffer.from(privateKey.replace('0x', ''), 'hex')
  )
  return sigUtil.concatSig(signed.v, signed.r, signed.s)
}