code: def after(self, out_xs):
      return "out = val * coeff;"
  
file_path: chainer/chainer/functions/pooling/average_pooling_nd_kernel.py
imports: from chainer.functions.pooling import pooling_nd_kernel
label_desc: Use image node_id 5 for calling the AveragePoolingNDKernelForward obj's underlying member method code with example usage: obj.after(out_xs) and returns: str