type ContractResultType =
  | { success: true; data: ReturnDataType }
  | { success: false; revertReason: RevertReasonType };

import * as ContractResult from '@tevm/voltaire/primitives/ContractResult';
import * as ReturnData from '@tevm/voltaire/primitives/ReturnData';
import * as RevertReason from '@tevm/voltaire/primitives/RevertReason';

// Success result
const success = ContractResult.success(ReturnData.fromHex("0x..."));

// Failure result
const failure = ContractResult.failure(revertReason);

// From flag and data
const result = ContractResult.from(true, "0x...");

import * as ContractResult from '@tevm/voltaire/primitives/ContractResult';

const result = ContractResult.from(success, returnData);

if (ContractResult.isSuccess(result)) {
  console.log("Success:", result.data);
} else {
  console.log("Revert:", result.revertReason);
}

// Unwrap with error handling
try {
  const data = ContractResult.unwrap(result);
  console.log("Data:", data);
} catch (error) {
  if (error instanceof ContractResult.ContractRevertError) {
    console.log("Revert reason:", error.revertReason);
  }
}

// Unwrap with default
const data = ContractResult.unwrapOr(result, ReturnData.fromHex("0x"));