code: def create_empty_dataset(dataset):
      """Creates an empty dataset for models with no inputs and outputs.
  
      This function generates an empty dataset, i.e., ``__getitem__()`` only
      returns ``None``. Its dataset is compatible with the original one.
      Such datasets used for models which do not take any inputs,
      neither return any outputs. We expect models, e.g., whose ``forward()``
      is starting with ``chainermn.functions.recv()`` and ending with
      ``chainermn.functions.send()``.
  
      Args:
          dataset: Dataset to convert.
  
      Returns:
          ~chainer.datasets.TransformDataset:
              Dataset consists of only patterns in the original one.
      """
      return [()] * len(dataset)
  
label_desc: Use image node_id 1 for calling a global function with example usage: create_empty_dataset(dataset) and returns: unknown