Improve performance of loading json graph profile#4

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echoix wants to merge 2 commits intonandor:masterfrom

echoix:python-speed-improvements

Commits on Apr 21, 2024

graph.py: Update inputs and outputs set instead of returning a new set
echoix
committed
graph.py: Load json directly from file handle instead of from loading file to string and from string to json
echoix
committed