How to get the symbol of gluon's RNN model by hybridizing

[everwind]

I follow the instruction of http://gluon.mxnet.io/P14-C05-hybridize.html#, but fail. the error message is:
File "/usr/lib/python2.7/site-packages/mxnet-0.11.0-py2.7.egg/mxnet/gluon/block.py", line 312, in setattr
super(HybridBlock, self).setattr(name, value)
File "/usr/lib/python2.7/site-packages/mxnet-0.11.0-py2.7.egg/mxnet/gluon/block.py", line 177, in setattr
self.register_child(value)
File "/usr/lib/python2.7/site-packages/mxnet-0.11.0-py2.7.egg/mxnet/gluon/block.py", line 327, in register_child
str(block), str(type(block))))
ValueError: Children of HybridBlock must also be HybridBlock, but RNN(100 -> 100, TNC, num_layers=2, dropout=0.2) has type <class 'mxnet.gluon.rnn.rnn_layer.RNN'>. If you are using Sequential, please try HybridSequential instead.
I can not find the HybridSequential RNN in source code of gluon

[piiswrong]

RNN is not a HybridBlock so you cannot use it as a children of a HybridBlock.

This is currently a limitation due to sym.RNN doesn't support CPU. RNN will be changed to a hybridblock in the future.

[dmas-at-wiris]

@piiswrong Any ETA for this feature?

[aodhan-domhnaill]

@piiswrong Is this feature available now?

[Matafight]

looking forward to this new feature

[sontran]

same here. thanks!

[xylcbd]

same here.

[QiXuanWang]

is it still a limitation yet? Can someone post a workaround?

[szha]

This request is tracked in #10873. The overall project is tracked in https://github.com/apache/incubator-mxnet/projects/11

[sandeep-krishnamurthy]

Resolving it since it is now supported - #11482