code: def initialize(self, n):
      self.queue = chainer.Variable(
          self.xp.zeros(
              (
                  n,
                  self.residual_channels,
                  self.dilation * (self.filter_size - 1) + 1,
              ),
              dtype=self.conv.W.dtype,
          )
      )
      self.conv.pad = 0
  
file_path: chainer/examples/wavenet/modules.py
imports: import chainer
  import chainer.functions
  import chainer.links
label_desc: Use image node_id 3 for calling the ResidualBlock obj's underlying member method code with example usage: obj.initialize(n) without return types