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

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)?

Start in the clang server's start_server implementation and search for the referenced method calls and definitions across the rust, solargraph, typescript, and eclipse implementations. Determine whether the missing methods should be consistently defined as asyncio events or whether their callers are obsolete, then verify the affected language-server paths no longer fail when those conditions occur.