How Do You Search Local BCL Components Using API With C# Bindings

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How do you use the searchComponents method of a local BCL instance? It takes two string arguments; one for the search term and one for the componentType. What is component type exactly? Is it something like "OS:Fan:VariableVolume" or something else?

I'm using the C# bindings and am getting a reference to the local instance using: var localBCL = LocalBCL.instance()

Checking the path it seems to exist, but I can't seem to get the search to return any results. Does anyone know what the componentType input should be? Also, does the search term need to be an exact match or just partial?