getGasPrice function
Get current average gas price from the last ethereum blocks and multiply it @param {Number} multiplier - multiply the average gas price by this parameter @param {Web3Client} web3Client - Network url (i.e, http://localhost:8545). Optional @returns {Future
Implementation
Future<int> getGasPrice(num multiplier, Web3Client web3client) async {
EtherAmount strAvgGas = await web3client.getGasPrice();
BigInt avgGas = strAvgGas.getInWei;
BigInt res = avgGas * BigInt.from(multiplier);
int retValue = res.toInt();
return retValue;
}