if (request instanceof ModifyTransactionRequest) {
replayModifyTransactionRequest((ModifyTransactionRequest) request, callback, enqueuedTicks);
} else if (handleReadRequest(request, callback)) {
// No-op
} else if (request instanceof TransactionPurgeRequest) {
if (request instanceof ModifyTransactionRequest) {
replayModifyTransactionRequest((ModifyTransactionRequest) request, callback, enqueuedTicks);
} else if (handleReadRequest(request, callback)) {
// No-op
} else if (request instanceof TransactionPurgeRequest) {