General
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Introduction
Just imagine that we've already got the good simulation and made the agent cache, but for some reasons, we have to make a small fix on some very limited and specific agents. At this time, we really don't want to re-make the simulation cache at all and want to do directly edit on the cached agents. because that these fixes (like move some agent left/right or remove some agents) are too small to re-make the entire cache, especially we had did the dynamic simulation, it would be time-consuming and risk to redo the simulation again.
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