code: def forward(self, x, conditions):
      for i, (func, cond) in enumerate(
          zip(self.children(), conditions)
      ):
          x, skip = func(x, cond)
          if i == 0:
              skip_connections = skip
          else:
              skip_connections += skip
      return skip_connections
  
file_path: chainer/examples/wavenet/modules.py
imports: import chainer
  import chainer.functions
  import chainer.links
label_desc: Use image node_id 2 for calling the ResidualNet obj's underlying member method code with example usage: obj.forward(x, conditions) and returns: skip_connections