pragma solidity ^0.7.0; contract Events { event LogCreateVault(uint256 vaultId, address sender); event LogDestroyVault(uint256 vaultId, address sender); event LogDepositCollateral(uint256 vaultID, uint256 amount, uint256 getVaultId, uint256 setVaultId, uint256 getAmtId, uint256 setAmtId); event LogWithdrawCollateral(uint256 vaultID, uint256 amount, uint256 getVaultId, uint256 setVaultId, uint256 getAmtId, uint256 setAmtId); event LogBorrow(uint256 vaultID, uint256 amount, uint256 getVaultId, uint256 setVaultId, uint256 getAmtId, uint256 setAmtId); event LogPayBack(uint256 vaultID, uint256 amount, uint256 getVaultId, uint256 setVaultId, uint256 getAmtId, uint256 setAmtId); }