class_docstr: LibSVMIODataset
code: def element_spec(self):
      return self._dataset.element_spec
  
imports: import tensorflow
  from tensorflow_io.python.experimental.text_ops import decode_libsvm
label_desc: Use image node_id 3 for calling the LibSVMIODataset obj's underlying member method code with example usage: obj.element_spec() and returns: self