code: def _compile_c0(self, outs, ks):
      # 2D: int c0 = i / (k_0 * k_1 * out_0 * out_1)
      return ["int c0 = i / ({});".format(mulexp(ks + outs))]
  
imports: import functools
  import six
  from chainer.backends import cuda
label_desc: Use image node_id 3 for calling the Im2colNDKernel obj's underlying member method code with example usage: obj._compile_c0(outs, ks) and returns: list