class_docstr: Utility class responsible from creating a tensor tracer report.
code: def instrument_tensor(self, tensor, explanation):
      self.instrument(tensor.name, explanation)
  
imports: import collections
  import hashlib
  import os
  from tensorflow.python.platform import gfile
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.tpu import tensor_tracer_pb2
label_desc: Use image node_id 4 for calling the TTReportHandle obj's underlying member method code with example usage: obj.instrument_tensor(tensor, explanation) without return types