How to efficiently build a RNN or LSTM in terms of mxnet symbol?

How to efficiently build a RNN or LSTM in terms of mxnet symbol? Any advice will be appreciated. Thank you very much!

Here are some LSTM examples using the Symbol API:

If you are writing new code, I would highly recommend the Gluon API instead. Please check this tutorial.

thank you very much. That’s what I want to know.