I want to be able to tell if an input for a geometry node is empty or not.

So far I found I can check if an object that is set from an input is empty or not like this.

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This feels like a hack and I wonder if there is a proper way for doing this.

Also I will like to check if a material is empty or not when it comes from an input, I tried comparing the input material with an empty one but it seems like the result can't be used in a switch node

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