diff --git a/dist/app-1.0.0-py3-none-any.whl b/dist/app-1.0.0-py3-none-any.whl
index 5a9033c..d95fecb 100644
Binary files a/dist/app-1.0.0-py3-none-any.whl and b/dist/app-1.0.0-py3-none-any.whl differ
diff --git a/dist/app-1.0.0.tar.gz b/dist/app-1.0.0.tar.gz
index cd6504d..9c40b93 100644
Binary files a/dist/app-1.0.0.tar.gz and b/dist/app-1.0.0.tar.gz differ
diff --git a/src/app/rpc.py b/src/app/rpc.py
index cd0ec8b..1f0220b 100644
--- a/src/app/rpc.py
+++ b/src/app/rpc.py
@@ -1,31 +1,37 @@
-
-from xmlrpc.server import resolve_dotted_attribute
-from xmlrpc.client import Fault, dumps, loads, gzip_encode, gzip_decode, ServerProxy,MultiCall
-from functools import partial
-from inspect import signature
-from aiohttp import web
 from datetime import datetime
+from functools import partial
+from xmlrpc.client import (
+    Fault,
+    MultiCall,
+    ServerProxy,
+    dumps,
+    loads,
+)
+from xmlrpc.server import resolve_dotted_attribute
+
+from aiohttp import web
 
 
 class AsyncSimpleXMLRPCDispatcher:
     """
     Original not async version of this class is in the original python std lib:
     https://github.com/python/cpython/blob/main/Lib/xmlrpc/server.py.
-    
+
     use_builtin_types=True allows the use of bytes-object which is preferred
     because else it's a custom xmlrpc.client.Binary which sucks.
     """
 
-    def __init__(self, instance,allow_none=True, encoding="utf-8", use_builtin_types=True):
+    def __init__(
+        self, instance, allow_none=True, encoding="utf-8", use_builtin_types=True
+    ):
         self.setup_rpc(allow_none=allow_none, encoding=encoding, use_builtin_types=True)
-        self.register_instance(instance,True)
+        self.register_instance(instance, True)
 
-    def setup_rpc(self, allow_none=True, encoding="utf-8",
-                 use_builtin_types=True):
+    def setup_rpc(self, allow_none=True, encoding="utf-8", use_builtin_types=True):
         self.funcs = {}
         self.instance = None
         self.allow_none = allow_none
-        self.encoding = encoding or 'utf-8'
+        self.encoding = encoding or "utf-8"
         self.use_builtin_types = use_builtin_types
 
     def register_instance(self, instance, allow_dotted_names=True):
@@ -45,14 +51,18 @@ class AsyncSimpleXMLRPCDispatcher:
         return function
 
     def register_introspection_functions(self):
-        self.funcs.update({'system.listMethods' : self.system_listMethods,
-                      'system.methodSignature' : self.system_methodSignature,
-                      'system.methodHelp' : self.system_methodHelp})
+        self.funcs.update(
+            {
+                "system.listMethods": self.system_listMethods,
+                "system.methodSignature": self.system_methodSignature,
+                "system.methodHelp": self.system_methodHelp,
+            }
+        )
 
     def register_multicall_functions(self):
-        self.funcs.update({'system.multicall' : self.system_multicall})
+        self.funcs.update({"system.multicall": self.system_multicall})
 
-    async def _marshaled_dispatch(self, data, dispatch_method = None, path = None):
+    async def _marshaled_dispatch(self, data, dispatch_method=None, path=None):
         try:
             params, method = loads(data, use_builtin_types=self.use_builtin_types)
 
@@ -61,45 +71,47 @@ class AsyncSimpleXMLRPCDispatcher:
             else:
                 response = await self._dispatch(method, params)
             response = (response,)
-            response = dumps(response, methodresponse=1,
-                             allow_none=self.allow_none, encoding=self.encoding)
+            response = dumps(
+                response,
+                methodresponse=1,
+                allow_none=self.allow_none,
+                encoding=self.encoding,
+            )
         except Fault as fault:
-            response = dumps(fault, allow_none=self.allow_none,
-                             encoding=self.encoding)
+            response = dumps(fault, allow_none=self.allow_none, encoding=self.encoding)
         except BaseException as exc:
             response = dumps(
-                Fault(1, "%s:%s" % (type(exc), exc)),
-                encoding=self.encoding, allow_none=self.allow_none,
-                )
+                Fault(1, f"{type(exc)}:{exc}"),
+                encoding=self.encoding,
+                allow_none=self.allow_none,
+            )
 
-        return response.encode(self.encoding, 'xmlcharrefreplace')
+        return response.encode(self.encoding, "xmlcharrefreplace")
 
     def system_listMethods(self):
         methods = set(self.funcs.keys())
         if self.instance is not None:
-            if hasattr(self.instance, '_listMethods'):
+            if hasattr(self.instance, "_listMethods"):
                 methods |= set(self.instance._listMethods())
-            elif not hasattr(self.instance, '_dispatch'):
+            elif not hasattr(self.instance, "_dispatch"):
                 methods |= set(list_public_methods(self.instance))
         return sorted(methods)
 
     def system_methodSignature(self, method_name):
-        return 'signatures not supported'
+        return "signatures not supported"
 
     def system_methodHelp(self, method_name):
         method = None
         if method_name in self.funcs:
             method = self.funcs[method_name]
         elif self.instance is not None:
-            if hasattr(self.instance, '_methodHelp'):
+            if hasattr(self.instance, "_methodHelp"):
                 return self.instance._methodHelp(method_name)
-            elif not hasattr(self.instance, '_dispatch'):
+            elif not hasattr(self.instance, "_dispatch"):
                 try:
                     method = resolve_dotted_attribute(
-                                self.instance,
-                                method_name,
-                                self.allow_dotted_names
-                                )
+                        self.instance, method_name, self.allow_dotted_names
+                    )
                 except AttributeError:
                     pass
         if method is None:
@@ -110,21 +122,17 @@ class AsyncSimpleXMLRPCDispatcher:
     async def system_multicall(self, call_list):
         results = []
         for call in call_list:
-            method_name = call['methodName']
-            params = call['params']
+            method_name = call["methodName"]
+            params = call["params"]
 
             try:
                 results.append([await self._dispatch(method_name, params)])
             except Fault as fault:
                 results.append(
-                    {'faultCode' : fault.faultCode,
-                     'faultString' : fault.faultString}
-                    )
+                    {"faultCode": fault.faultCode, "faultString": fault.faultString}
+                )
             except BaseException as exc:
-                results.append(
-                    {'faultCode' : 1,
-                     'faultString' : "%s:%s" % (type(exc), exc)}
-                    )
+                results.append({"faultCode": 1, "faultString": f"{type(exc)}:{exc}"})
         return results
 
     async def _dispatch(self, method, params):
@@ -135,17 +143,15 @@ class AsyncSimpleXMLRPCDispatcher:
         else:
             if func is not None:
                 return await func(*params)
-            raise Exception('method "%s" is not supported' % method)
+            raise Exception(f'method "{method}" is not supported')
 
         if self.instance is not None:
-            if hasattr(self.instance, '_dispatch'):
+            if hasattr(self.instance, "_dispatch"):
                 return await self.instance._dispatch(method, params)
 
             try:
                 func = resolve_dotted_attribute(
-                    self.instance,
-                    method,
-                    self.allow_dotted_names
+                    self.instance, method, self.allow_dotted_names
                 )
             except AttributeError:
                 pass
@@ -153,20 +159,21 @@ class AsyncSimpleXMLRPCDispatcher:
                 if func is not None:
                     return await func(*params)
 
-        raise Exception('method "%s" is not supported' % method)
+        raise Exception(f'method "{method}" is not supported')
+
 
 def rpc_wrap_instance(obj):
 
     class Session:
 
-        def __init__(self,data=None):
+        def __init__(self, data=None):
             self._data = data or {}
 
         async def get(self, key, default=None):
-            return self._data.get(key,default)
+            return self._data.get(key, default)
 
-        async def set(self,key, value):
-            self._data[key] = value 
+        async def set(self, key, value):
+            self._data[key] = value
 
         async def delete(self, key):
             try:
@@ -175,39 +182,35 @@ def rpc_wrap_instance(obj):
             except KeyError:
                 return False
 
-        async def exists(self,key):
+        async def exists(self, key):
             return key in self._data
 
     class Instance:
-        
-        def __init__(self, _self):
-            self._self = self 
-            self.session = Session()
-        
-        def __get__(self,key):
-            return getattr(self._self,key)
 
-        def ping(self,*args,**kwargs):
-            return dict(
-                args=args,
-                kwargs=kwargs,
-                timestamp=str(datetime.now())
-            )
+        def __init__(self, _self):
+            self._self = self
+            self.session = Session()
+
+        def __get__(self, key):
+            return getattr(self._self, key)
+
+        def ping(self, *args, **kwargs):
+            return {"args": args, "kwargs": kwargs, "timestamp": str(datetime.now())}
 
     instance = Instance(obj)
 
     for attr in dir(obj):
-        if attr == 'rpc_handler':
+        if attr == "rpc_handler":
             continue
         if attr.startswith("rpc_") and callable(getattr(obj, attr)):
-            setattr(instance,attr[4:], getattr(obj,attr))
+            setattr(instance, attr[4:], getattr(obj, attr))
 
     return instance
 
 
 class Application(web.Application):
 
-    def __init__(self, url=None,host=None,port=None, *args, **kwargs):
+    def __init__(self, url=None, host=None, port=None, *args, **kwargs):
         self.host = host
         self.port = port
         self._url = url
@@ -221,14 +224,14 @@ class Application(web.Application):
 
     def __get__(self, key):
         if self._rpc:
-            return getattr(self._rpc,key)
-        return getattr(self.arpc,key)
+            return getattr(self._rpc, key)
+        return getattr(self.arpc, key)
 
     @property
     def url(self):
         if self._url:
-            return self._url 
-        return "http://{}:{}".format(self.host,self.port)
+            return self._url
+        return f"http://{self.host}:{self.port}"
 
     @property
     def rpc_url(self):