```\\nfunction getMultiplier(address account) private view returns (uint256) {\\n    uint256 multiplier;\\n    if (_multiplier[account] && block.timestamp > _holderFirstBuyTimestamp[account] + 1 weeks && \\n        block.timestamp < _holderFirstBuyTimestamp[account] + 2 weeks) {\\n        multiplier = balanceOf(account).mul(3);\\n    }\\n    else if (_multiplier[account] && block.timestamp > _holderFirstBuyTimestamp[account] + 2 weeks && \\n             block.timestamp < _holderFirstBuyTimestamp[account] + 3 weeks) {\\n                 multiplier = balanceOf(account).mul(5);\\n    }\\n    else if (_multiplier[account] && block.timestamp > _holderFirstBuyTimestamp[account] + 3 weeks) {\\n                 multiplier = balanceOf(account).mul(7);\\n    }\\n    else {\\n        multiplier = balanceOf(account);\\n    }\\n    \\n    return\\n            multiplier;\\n}\\n```\\n