Detecting if layer is a duplicate of another layer

Is there a way to say if a given layer is a duplicate of another?

If you are trying to find a rogue duplicate layer that is lurking in a project, you would need to scan all the layer properties of your source layer. Then compare those against the same properties on every other layer in the project. A very time intensive process, unless you have some common key values to search for first, like frame size, duration or name. You could narrow down the overall pot of content to compare first if you did that.

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