function getTime() public view returns(uint256){ return block.timestamp; } function UpdateMedicineDetails(uint256 _batchID,uint256 _price) public{ medMap[_batchID].price = _price; } function checkExpiry(uint256 _batchID) public view returns(bool){ require(medMap[_batchID].expiry > block.timestamp, "product expired"); return true; } }