Error in implementation of various LS (methods don't exist)

[MischaPanch]

Several methods are called in the clang server which don't exist, here in start_server:

                if registration["method"] == "workspace/executeCommand":
                    self.initialize_searcher_command_available.set()
                    self.resolve_main_method_available.set(

And also

            if params["type"] == "ServiceReady" and params["message"] == "ServiceReady":
                self.service_ready_event.set()

I guess they used to exist but were removed during some refactoring? It doesn't always lead to runtime errors, I suppose the conditions when they are called are rarely or never fulfilled

EDIT: initialize_searcher_command_available is also called without being defined for rust, solargraph and typescript. In eclipse it is defined as

self.initialize_searcher_command_available = asyncio.Event()

Should it be defined as event everywhere? Or should the code calling it be removed (since hasn't been functional for a while)?