1️⃣EntryPoint Interface

The core interface of the EntryPoint contract is as follows:

function handleOps(UserOperation[] calldata ops, address payable beneficiary);

function handleAggregatedOps(
    UserOpsPerAggregator[] calldata opsPerAggregator,
    address payable beneficiary
);

struct UserOpsPerAggregator {
    UserOperation[] userOps;
    IAggregator aggregator;
    bytes signature;
}

function simulateValidation(UserOperation calldata userOp);

error ValidationResult(ReturnInfo returnInfo,
    StakeInfo senderInfo, StakeInfo factoryInfo, StakeInfo paymasterInfo);

error ValidationResultWithAggregation(ReturnInfo returnInfo,
    StakeInfo senderInfo, StakeInfo factoryInfo, StakeInfo paymasterInfo,
    AggregatorStakeInfo aggregatorInfo);

struct ReturnInfo {
  uint256 preOpGas;
  uint256 prefund;
  bool sigFailed;
  uint48 validAfter;
  uint48 validUntil;
  bytes paymasterContext;
}

struct StakeInfo {
  uint256 stake;
  uint256 unstakeDelaySec;
}

struct AggregatorStakeInfo {
    address actualAggregator;
    StakeInfo stakeInfo;
}