[Python] IPython.display does not show any image at all but <IPython.core.display.Image object>

I am trying to show LangChain graph in my python module code. Not Jupiter notebook. However, the following code snippet:

graph = BuildGraph()
display(Image(graph.get_graph().draw_mermaid_png()))


shows: <IPython.core.display.Image object> instead of the graph. I am on Ubuntu.

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