Update typing for model data access

modules/modeldata.py

@@ -1,9 +1,16 @@
+from __future__ import annotations
+
 import os
 import sys
 import threading
-from modules import shared, errors
+from typing import TYPE_CHECKING
+
+from modules import errors, shared
 from modules.logger import log
 
+if TYPE_CHECKING:
+    from diffusers import DiffusionPipeline
+
 
 def get_model_type(pipe):
     name = pipe.__class__.__name__
@@ -120,8 +127,8 @@ def get_model_type(pipe):
 
 class ModelData:
     def __init__(self):
-        self.sd_model = None
+        self.sd_model: DiffusionPipeline | None = None
-        self.sd_refiner = None
+        self.sd_refiner: DiffusionPipeline | None = None
         self.sd_dict = 'None'
         self.initial = True
         self.locked = True

modules/shared.py

@@ -236,12 +236,14 @@ def restore_defaults(restart=True):
     restart_server(restart)
 
 
-# startup def of shared.sd_model before its redefined in modeldata
+from modules.modeldata import Shared  # pylint: disable=ungrouped-imports
-sd_model: DiffusionPipeline | None = None # dummy and overwritten by class
-sd_refiner: DiffusionPipeline | None = None # dummy and overwritten by class
-sd_model_type: str = '' # dummy and overwritten by class
-sd_refiner_type: str = '' # dummy and overwritten by class
-sd_loaded: bool = False # dummy and overwritten by class
 
-from modules.modeldata import Shared # pylint: disable=ungrouped-imports
 sys.modules[__name__].__class__ = Shared
+
+if TYPE_CHECKING:
+    # From Shared class
+    sd_model: DiffusionPipeline | None
+    sd_refiner: DiffusionPipeline | None
+    sd_model_type: str
+    sd_refiner_type: str
+    sd_loaded: bool