balanceOf method
Returns the amount of tokens owned by account.
The optional atBlock parameter can be used to view historical data. When
set, the function will be evaluated in the specified block. By default, the
latest on-chain block will be used.
Implementation
Future<BigInt> balanceOf(_i1.EthereumAddress account,
{_i1.BlockNum? atBlock}) async {
final function = self.abi.functions[2];
assert(checkSignature(function, '70a08231'));
final params = [account];
final response = await read(function, params, atBlock);
return (response[0] as BigInt);
}