Is there any implementation of EG algorithm?

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The algorithm is described in paper: "A General Framework for Subexponential Discrete Logarithm Algorithms".

I'm solving HECDLP problem and having trouble writing the implementation. So, i thought, since SageMath is so great, maybe it has written it. But I can't find useful infos about it.

And if I choose the wrong algorithm for GHS attack, please say it. I'm still not so familiar to this field.

Anyway, thx!