fix: argument position

src/common/jsonrpc2/server.py

@@ -65,14 +65,20 @@ class Error(Enum):
     INVALID_PARAMS = -32602
     INTERNAL_ERROR = -32603
 
+    def __init__(self):
+        super().__init__()
+        self.data = None
+
     def message(self) -> str:
         return self.name.capitalize().replace('_', ' ')
 
     def response(self):
-        data = dict()
+        result = dict()
-        data['code'] = self.value
+        result['code'] = self.value
-        data['message'] = self.message()
+        result['message'] = self.message()
-        return data
+        if self.data is not None:
+            result['data'] = self.data
+        return result
 
 class History(logging.Handler):
     def __init__(self):
@@ -159,5 +165,5 @@ def remove(method: str) -> Callable[..., Any]:
     return handlers.pop(method)
 
 def run(options: Options):
-    thread = Thread(target=lambda: trio.run(backend), daemon=True, args=(options,))
+    thread = Thread(target=lambda: trio.run(backend, options), daemon=True)
     thread.start()