public Optional<TransactionSimulatorResult> process(
      final CallParameter callParams, final Hash blockHeaderHash) {
    final BlockHeader header = blockchain.getBlockHeader(blockHeaderHash).orElse(null);
    return process(
        callParams,
        TransactionValidationParams.transactionSimulator(),
        OperationTracer.NO_TRACING,
        (mutableWorldState, transactionSimulatorResult) -> transactionSimulatorResult,
        header);
  }
Processes a transaction simulation with the provided parameters and executes pre-worldstate
close actions.

@param callParams The call parameters for the transaction.
@param maybeStateOverrides The map of state overrides to apply to the state for this
    transaction.
@param transactionValidationParams The validation parameters for the transaction.
@param operationTracer The tracer for capturing operations during processing.
@param preWorldStateCloseGuard The pre-worldstate close guard for executing pre-close actions.
@param header The block header.
@return An Optional containing the result of the processing.
ethereum/core/src/main/java/org/hyperledger/besu/ethereum/transaction/TransactionSimulator.java