```\nfunction \_beforeTokenTransfer(\n    address from,\n    address to,\n    uint256 amount\n) internal override(ERC20Upgradeable, ERC20Wrapper, ERC20Reservable) {\n    ERC20Wrapper.\_beforeTokenTransfer(from, to, amount);\n    ERC20Reservable.\_beforeTokenTransfer(from, to, amount);\n}\n```\n