- server.py: language server started

                    params = obj['params'] if 'params' in obj else ()

                    await run(method_name, method, params)

            try:

                error = cast(Dict[str, str], result['error'])

                rpc_error = error['code'], error['message']

            except TypeError:

                pass  # result is not a dictionary, never mind

            if rpc_error is None:

                json_result = {"jsonrpc": "2.0", "result": result, "id": json_id}

                writer.write(json.dumps(json_result, cls=DHParser_JSONEncoder).encode())

            while self.server_messages.get() != SERVER_OFFLINE:

                pass

        self.terminate_server()

class LanguageServer(Server):

    """Template for the implementation of a language server.

    See: https://microsoft.github.io/language-server-protocol/"""

    cpu_bound = ALL_RPCs    # type: Set[str]

    blocking = frozenset()  # type: Set[str]

    def __init__(self):

        rpc_table = dict()  # type: RPC_Table

        for attr in dir(self):

            if attr.startswith('rpc_'):

                name = attr[4:].replace('_', '/')

                func = getattr(self, attr)

                rpc_table[name] = func

        super().__init__(rpc_table, self.cpu_bound, self.blocking)

        self._initialized = False

    def rpc_initialize(self,

                       processId: Optional[int],

                       rootPath: Optional[str],

                       rootUri: Optional[str],

                       initializeOptions: JSON_Type,

                       capabilities: JSON_Type,

                       trace: str,

                       workspaceFolders: List[Dict[str, str]]):

        if self._initialized:

            pass

        # Error Code -32002

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