Missing key error - Inference function does not return image features

[ahron1]

In the mmt release notebook, in the function definition RunInferenceSingleImage(image, graph), nowhere does it return detection features.

Yet, after that function call, output_dict is instantiated as output_dict = RunInferenceSingleImage(image_np, detection_graph) and it tries to access output_dict['detection_features'].

Obviously this leads to errors about missing keys.

Any hints to how to resolve this will be appreciated. I think I might be missing something simple.