code: def call(self, x, training=True):
      h = self.conv1(x)
      h = self.conv2(h)
      h = self.conv3(h)
  
      s = x
      if self.skip_by_conv:
          s = self.skip(s)
      h = F.relu(F.add2(h, s, inplace=True), inplace=True)
      return h
  
file_path: nnabla/python/src/nnabla/core/modules.py
imports: from __future__ import absolute_import
  import nnabla.functions
  import nnabla.parametric_functions
  from nnabla.core.module import Module
label_desc: Use image node_id 2 for calling the ResUnit obj's underlying member method code with example usage: obj.call(x, training) and returns: h