class_docstr: ChainList with a residual connection.
class_docstr_tok: ["ChainList","with","a","residual","connection","."]
code: def forward(self, x):
      h = x
      for link in self:
          h = link(h)
      h += x
      return h
  
imports: from __future__ import division
  import itertools
  import numpy
  import chainer
  from chainer.backends import cuda
  import chainer.functions
  from chainer.links import Convolution2D
  from chainercv.links import Conv2DBNActiv
  from chainercv import utils
  from chainercv.links.model.yolo.yolo_base import YOLOBase
label_desc: Use image node_id 2 for calling the ResidualBlock obj's underlying member method code with example usage: obj.forward(x) and returns: h