message: Use ops.Tensor instead of tf.Tensor.
diff: @@ -588,7 +588,7 @@ class TrtGraphConverter(object):
  for k, v in input_map_fn().items():
  if not isinstance(k, str):
  raise ValueError("Keys of input_map_fn must be of type str")
  - if not isinstance(v, tf.Tensor):
  + if not isinstance(v, ops.Tensor):
  raise ValueError("Values of input_map_fn must be of type tf.Tensor")
  self._calibration_graph = ops.Graph()
  