frozen_model.pb Output names

[Pieth]

I want to use the frozen_model.pb of MNIST model in LabVIEW. To do this I need the Output Node Names of the frozen graph. Could you help me how could I find the names of the nodes for output tensors.
I.e. the frozen graph of the Tensor Flow Object-Detection API (tensorflow/models/research/object_detection) the names of the nodes for output tensors are defined in the file "exporter.py". This works great together with LabVIEWs Deep Learning library for Tensor Flow. Sorry for my bad english! :-)
Best regards Peter