https://huggingface.co/datasets/NingsenWang/misc/resolve/main/LightMem/src/lightmem/memory/graph.py
hf download hf://datasets/NingsenWang/misc/LightMem/src/lightmem/memory/graph.py
curl -L -o graph.py https://huggingface.co/datasets/NingsenWang/misc/resolve/main/LightMem/src/lightmem/memory/graph.py
