edit some parts where pycharm gives warning on type hint

daemon/core/gui/dialogs/copyserviceconfig.py

@@ -176,7 +176,7 @@ class ViewConfigDialog(Dialog):
         master: Any,
         app: "Application",
         node_id: int,
-        data: bytes,
+        data: str,
         filename: str = None,
     ):
         super().__init__(master, app, f"n{node_id} config data", modal=True)

daemon/core/gui/nodeutils.py

@@ -1,4 +1,4 @@
-from typing import TYPE_CHECKING, Set
+from typing import TYPE_CHECKING, Optional, Set
 
 from core.api.grpc.core_pb2 import NodeType
 from core.gui.images import ImageEnum, Images
@@ -14,10 +14,10 @@ class NodeDraw:
     def __init__(self):
         self.custom: bool = False
         self.image = None
-        self.image_enum: ImageEnum = None
+        self.image_enum: Optional[ImageEnum] = None
         self.image_file = None
         self.node_type: core_pb2.NodeType = None
-        self.model: str = None
+        self.model: Optional[str] = None
         self.services: Set[str] = set()
 
     @classmethod
@@ -39,7 +39,7 @@ class NodeDraw:
         return node_draw
 
     @classmethod
-    def from_custom(cls, name: str, image_file: str, services: str):
+    def from_custom(cls, name: str, image_file: str, services: Set[str]):
         node_draw = NodeDraw()
         node_draw.custom = True
         node_draw.image_file = image_file

daemon/core/gui/task.py

@@ -1,15 +1,10 @@
 import logging
 import threading
-from typing import TYPE_CHECKING, Callable
-
-if TYPE_CHECKING:
-    from core.gui.app import Application
+from typing import Any, Callable
 
 
 class BackgroundTask:
-    def __init__(
-        self, master: "Application", task: Callable, callback: Callable = None, args=()
-    ):
+    def __init__(self, master: Any, task: Callable, callback: Callable = None, args=()):
         self.master = master
         self.args = args
         self.task = task