ChainUtils

uint256 ARBITRUM_MAINNET

uint256 ARBITRUM_SEPOLIA

uint256 POLYGON_MAINNET

uint256 TESTNET

error Overflow()

function getBlockNumber() internal view returns (uint256)

function getUint48BlockNumber(uint256 blockNumber) internal pure returns (uint48)

function getWrappedNativeToken() internal view returns (address)

function isWrappedNativeToken(address _token) internal view returns (bool)