The Guid of a grasshopper object

I want to know does a grasshopper object have a Guid? How to get the Guid?

what do you mean with a “grasshopper object”?
GH-components have guids, rhinoobjects have guids, geometrical data (Surfaces, Breps, Curves… ) have not. If you select geometry in rhino, you actually select a rhino-object with geometrical data. In Grasshopper you don’t create rhinoobjects, just the geometric data, so you won’t have guids to work with.

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Thank you, I get it.