code: def apply_node(self, aggr_out, x):
      out = aggr_out * (1 - self.alpha)
      out = out + self.alpha * x
      return out
  
file_path: euler/tf_euler/python/convolution/appnp_conv.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import tensorflow
  from tf_euler.python.convolution import conv
  from tf_euler.python.euler_ops import mp_ops
label_desc: Use image node_id 5 for calling the APPNPConv obj's underlying member method code with example usage: obj.apply_node(aggr_out, x) and returns: out