code: def _flat_map(
      input_dataset, map_func, name=None
  ):  # pylint: disable=unused-private-name
      """See `Dataset.flat_map()` for details."""
      return _FlatMapDataset(input_dataset, map_func, name)
  
file_path: tensorflow-upstream/tensorflow/python/data/ops/flat_map_op.py
imports: from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.data.ops import structured_function
  from tensorflow.python.ops import gen_dataset_ops
label_desc: Use image node_id 1 for calling a global function with example usage: _flat_map(input_dataset, map_func, name) and returns: _FlatMapDataset