fix

src/common/__init__.py

@@ -1 +0,0 @@
-from jsonrpc2 import Request, Response, Error, History, ConnectionContext, define, remove, run

src/common/jsonrpc2.py

@@ -152,7 +152,7 @@ def run(logger: logging.Logger) -> str:
     history = History()
     fmt = logger.handlers[0].formatter
     logger.addHandler(history)
-    handlers.setdefault('sync', lambda: list(map(lambda x: fmt.format(x), history.truncate())))
+    define('sync', lambda: list(map(lambda x: fmt.format(x), history.truncate())))
 
     thread = Thread(target=lambda: trio.run(backend), daemon=True)
     thread.start()