Fix input size assert issue

Signed-off-by: Jael Gu <mengjia.gu@zilliz.com>

timm_image.py

@@ -109,7 +109,7 @@ class TimmImage(NNOperator):
                     crop_pct=self.config['crop_pct']
                 )
             except:
-                self.tfms = create_transform(**resolve_data_config({}, model=self.model))
+                self.tfms = create_transform(**resolve_data_config({}, model=self.model.model))
             self.skip_tfms = skip_preprocess
         else:
             log.warning('The operator is initialized without specified model.')
@@ -149,6 +149,8 @@ class TimmImage(NNOperator):
     @property
     def config(self):
         config = get_pretrained_cfg(self.model_name)
+        if not isinstance(config, dict) and hasattr(config, 'to_dict'):
+            config = config.to_dict()
         return config
 
     @arg(1, to_image_color('RGB'))