```\nfunction excludeFromDividends(address account) external onlyOwner {\n    //require(!excludedFromDividends[account]);\n    excludedFromDividends[account] = true;\n\n    _setBalance(account, 0);\n    tokenHoldersMap.remove(account);\n\n    emit ExcludeFromDividends(account);\n}\n```\n