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If this works:

   newpt = bot:getLoc():__mul(2)

Shouldn't this:

   newpt = bot:getLoc() * 2

Instead I get an error: "attempt to perform arithmetic on a userdata value."

Some quick background: bot:getLoc() is a C++ method that returns a pointer to a point stored in C++. I am binding Lua and C++ using Lunar. __mul() is a method added in Lua (I have also tried adding it via C++). How can I get arithmetic methods to work on userdata?

Any ideas?