code: def _col2im(x, *args, **kwargs):
      if isinstance(x, numpy.ndarray):
          return col2im_cpu(x, *args, **kwargs)
      return col2im_gpu(x, *args, **kwargs)
  
imports: import numpy
  from chainer import function_node
  from chainer.utils.conv import col2im_cpu
  from chainer.utils.conv import col2im_gpu
  from chainer.utils.conv import im2col_cpu
  from chainer.utils.conv import im2col_gpu
  from chainer.utils import type_check
label_desc: Use image node_id 2 for calling a global function with example usage: _col2im(x) and returns: col2im_gpu, col2im_cpu