(F3X Internals Question) How are instance references passed to server?

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1

Hey!
I don’t want my players to be able to mess with the map.
So I have locked it, but then their endless creativity enabled them to find explorer - which i’d rather not remove altogether.

At the moment I have this:

local ServerEndpoint = script.Parent;
local SyncAPI = ServerEndpoint.Parent;
local Tool = SyncAPI.Parent;

-- Start the server-side sync module
SyncModule = require(SyncAPI:WaitForChild 'SyncModule');

-- Provide functionality to the server API endpoint instance
ServerEndpoint.OnServerInvoke = function (Client, ...)
	print(...)
        args = table.pack(...)
	if args[1] == "SetLocked" then
		return false
	end
	return SyncModule.PerformAction(Client, ...);
end;

How do I get the instance(s) that are passed, so I can check if one is locked and if it is then I can not PerformAction. The ...'s value seems to vary for each function.