```\\nfunction changeBaseURI(string memory newBaseURI)\\n    public\\n    onlyOwner\\n    notLocked\\n{\\n    require((keccak256(abi.encodePacked((_baseTokenURI))) != keccak256(abi.encodePacked((newBaseURI)))), "DCBW721: Base URI cannot be same as previous");\\n    _baseTokenURI = newBaseURI;\\n}\\n```\\n