Lua lua = new Lua(); //Create new Lua instance lua.DoString("function add(x,y) return x+y end"); //Define Lua function LuaFunction addFunc = lua.GetFunction("add"); //Get function by name object[] args = {6, 3}; //Arguments to pass to function try { int result = (int)addFunc.Call(args)[0]; //Call function and retrieve result Console.WriteLine("Result: " + result); } catch (LuaScriptException e) { //Handle Lua script exception Console.WriteLine("Script error: " + e.Message); }In this example, a Lua function named "add" that accepts two integer arguments and returns their sum is defined in the Lua script. The Lua function is then retrieved from the Lua instance using its name and called with the arguments passed as an object array. The result is then retrieved and printed to the console. The EndPCall method would be used for error handling if the Lua function throws an exception. Package library: LuaInterface.