class_docstr: Packed representation of compressed tensors.
  
  This class can pack and unpack several tensor values into a single string. It
  can also optionally store a model identifier.
  
  The tensors currently must be rank 1 (vectors) and either have integer or
  string type.
docstr: The string representation of this object.
code: def string(self):
      """The string representation of this object."""
      return self._example.SerializeToString()
  
file_path: compression/tensorflow_compression/python/util/packed_tensors.py
imports: import tensorflow
label_desc: Use image node_id 5 for calling the PackedTensors obj's underlying member method code with example usage: obj.string() and returns: self