class_docstr: BaseHDF5GraphIOTensor
docstr: Returns the total number of items of this IOTensor.
docstr_tok: ["Returns","the","total","number","of","items","of","this","IOTensor","."]
code: def __len__(self):
      """Returns the total number of items of this IOTensor."""
      return self._shape[0]
  
file_path: io/tensorflow_io/python/ops/hdf5_io_tensor_ops.py
imports: import tensorflow
  from tensorflow_io.python.ops import core_ops
  from tensorflow_io.python.ops import io_tensor_ops
label_desc: Use image node_id 7 for calling the BaseHDF5GraphIOTensor obj's underlying member method code with example usage: obj.__len__() and returns: self