I hereby claim:
- I am levanthang2332001 on github.
- I am vanthang559 (https://keybase.io/vanthang559) on keybase.
- I have a public key ASDuZHs31eoeMzykWb-_7ZSaRvvSgITL6Wl-Qx_eniy6jwo
To claim this, I am signing this object:
I hereby claim:
To claim this, I am signing this object:
// SPDX-License-Identifier: MIT | |
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol) | |
pragma solidity ^0.8.0; | |
import "../utils/Context.sol"; | |
/** | |
* @dev Contract module which provides a basic access control mechanism, where | |
* there is an account (an owner) that can be granted exclusive access to |
// SPDX-License-Identifier: MIT | |
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol) | |
pragma solidity ^0.8.0; | |
import "../utils/ContextUpgradeable.sol"; | |
import "../proxy/utils/Initializable.sol"; | |
/** | |
* @dev Contract module which provides a basic access control mechanism, where |