private void GetTransaction(byte[] txHash, bool requireConfirmed, Action <ErrorCode, Transaction, UInt64, UInt64> handler)
{
var managedHash = new hash_t {
hash = txHash
};
IntPtr contextPtr = CreateContext(handler, managedHash);
ChainNative.kth_chain_async_transaction(nativeInstance_, contextPtr, managedHash, Helper.BoolToC(requireConfirmed), internalGetTransactionHandler_);
}