code: def hybrid_forward(self, F, inputs):
      return self.decoder(self.rnn(inputs))
  
imports: from mxnet.gluon import HybridBlock, nn
  from gluonts.core.component import validated
  from gluonts.mx.block.rnn import RNN
label_desc: Use image node_id 2 for calling the RNNModel obj's underlying member method code with example usage: obj.hybrid_forward(F, inputs) and returns: self