How to use the @keepkey/device-protocol/lib/types_pb.TxInputType function in @keepkey/device-protocol

inputs.forEach((input, i) => {
    const utxo = new TxInputType()
    utxo.setPrevHash(fromHexString(input.txid))
    utxo.setPrevIndex(input.vout)
    if (input.sequence !== undefined) utxo.setSequence(input.sequence)
    utxo.setScriptType(translateInputScriptType(input.scriptType))
    utxo.setAddressNList(input.addressNList)
    utxo.setAmount(Number(input.amount))
    unsignedTx.addInputs(utxo, i)
  })

inputTx.tx.vin.forEach((vin, i) => {
      const txInput = new TxInputType()
      if (vin.coinbase !== undefined) {
        txInput.setPrevHash(fromHexString("\0".repeat(64)))
        txInput.setPrevIndex(0xffffffff)
        txInput.setScriptSig(fromHexString(vin.coinbase))
        txInput.setSequence(vin.sequence)
      } else {
        txInput.setPrevHash(fromHexString(vin.txid))
        txInput.setPrevIndex(vin.vout)
        txInput.setScriptSig(fromHexString(vin.scriptSig.hex))
        txInput.setSequence(vin.sequence)
      }
      tx.addInputs(txInput, i)
    })