pragma solidity ^0.5.16; import "./VirtualSynth.sol"; // https://docs.synthetix.io/contracts/source/contracts/virtualsynthmastercopy // Note: this is the "frozen" mastercopy of the VirtualSynth contract that should be linked to from // proxies. contract VirtualSynthMastercopy is VirtualSynth { constructor() public ERC20() { // Freeze mastercopy on deployment so it can never be initialized with real arguments initialized = true; } }