class_docstr: AlphaPose model 
class_docstr_tok: ["AlphaPose","model"]
code: def hybrid_forward(self, _, x):
      x = self.preact(x)
      x = self.shuffle1(x)
      x = self.duc1(x)
      x = self.duc2(x)
      x = self.conv_out(x)
      return x
  
imports: import math
  import os
  import mxnet
  from mxnet import initializer
  from mxnet.gluon import nn
  from mxnet.gluon.block import HybridBlock
  from .utils import ZeroUniform, _try_load_parameters
label_desc: Use image node_id 2 for calling the AlphaPose obj's underlying member method code with example usage: obj.hybrid_forward(_, x) and returns: x