class_docstr: AlexNet model from the `"One weird trick..." <https://arxiv.org/abs/1404.5997>`_ paper.
  
  Parameters
  ----------
  classes : int, default 1000
      Number of classes for the output layer.
code: def hybrid_forward(self, F, x):
      x = self.features(x)
      x = self.output(x)
      return x
  
imports: from mxnet.context import cpu
  from mxnet.gluon.block import HybridBlock
  from mxnet.gluon import nn
label_desc: Use image node_id 2 for calling the AlexNet obj's underlying member method code with example usage: obj.hybrid_forward(F, x) and returns: x