Creating a generic Clone() method for dictionaries

I wanted to create a Clone method for dictionaries which returns the same type as the Dictionary on which the method was called:

This would be quite easy if we would do an extension method for every type of dictionary, but I wanted to do this for all IDictionary implementations. Here is my solution:

Since cloning works by creating a new instance with the source dictionary as constructor parameter, we have to use Activator.CreateInstance to create a new instance.

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