Add utility to inspect a model's parameters (to get dtype/device)

modules/interrogate.py

@@ -11,6 +11,7 @@ from torchvision import transforms
 from torchvision.transforms.functional import InterpolationMode
 
 from modules import devices, paths, shared, lowvram, modelloader, errors
+from modules.torch_utils import get_param
 
 blip_image_eval_size = 384
 clip_model_name = 'ViT-L/14'
@@ -131,7 +132,7 @@ class InterrogateModels:
 
         self.clip_model = self.clip_model.to(devices.device_interrogate)
 
-        self.dtype = next(self.clip_model.parameters()).dtype
+        self.dtype = get_param(self.clip_model).dtype
 
     def send_clip_to_ram(self):
         if not shared.opts.interrogate_keep_models_in_memory: