code: def main(self, offset, xs):
      # 2D: val = val + in[offset_1];
      return "val = val + in[{}];".format(offset)
  
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 4 for calling the AveragePoolingNDKernelForward obj's underlying member method code with example usage: obj.main(offset, xs) and returns: str