pragma solidity ^0.4.21; import "./ERC20.sol"; import 'zos-upgradeability/contracts/migrations/Initializable.sol'; contract DetailedERC20 is Initializable, ERC20 { string public name; string public symbol; uint8 public decimals; function initialize(string _name, string _symbol, uint8 _decimals) public isInitializer { name = _name; symbol = _symbol; decimals = _decimals; } }