Why I can not find Curves.DeconstructPolyCurve Node?

Hi! I am a new user of Dynamo. I want to deconstruct curtain wall geometry in revit model into points. I found that Curves.DeconstructPolyCurve can help but I could not find it. Is there anyone can tell me why?

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It’s a node from the Lunchbox package:

Thank you so much!

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@Thomas_Corrie I’ve this lunchbox installed ,


But ,why con’t find this package from add-ons?

Have you installed it from the package manager? If so, you need to visit https://provingground.io/tools/lunchbox/ to get the full installer

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Thanks @Thomas_Corrie ,that works .