Is There A Way To Assign Plugin Alias To Instrument In Lua Script?

Can I somehow assign a VST plugin alias to an instrument in Lua? There is this:

-- Load an existing, new, non aliased plugin. Pass an empty string to unload  
-- an already assigned plugin. plugin_name must be one of:  
-- plugin_properties.available_plugins.[].plugin_properties:load_plugin(plugin_name)  
 -> [boolean, success]  

But how can I use an alias? Or is it not supported at all?