diff --git a/modules/onnx_impl/pipelines/__init__.py b/modules/onnx_impl/pipelines/__init__.py
index 62db80cd5..6d035771d 100644
--- a/modules/onnx_impl/pipelines/__init__.py
+++ b/modules/onnx_impl/pipelines/__init__.py
@@ -47,7 +47,7 @@ class PipelineBase(TorchCompatibleModule, diffusers.DiffusionPipeline, metaclass
 
             if "optimum.onnxruntime" in sys.modules:
                 import optimum.onnxruntime
-                if isinstance(module, optimum.onnxruntime.modeling_diffusion._ORTDiffusionModelPart): # pylint: disable=protected-access
+                if isinstance(module, optimum.onnxruntime.modeling_diffusion._ORTDiffusionModelPart): # pylint: disable=protected-access, no-member
                     device = extract_device(args, kwargs)
                     if device is None:
                         return self
diff --git a/modules/sd_models_utils.py b/modules/sd_models_utils.py
index 0b2794bac..ae50e5748 100644
--- a/modules/sd_models_utils.py
+++ b/modules/sd_models_utils.py
@@ -19,12 +19,14 @@ class NoWatermark:
 
 
 def get_signature(cls):
+    if cls is None or not hasattr(cls, '__init__'):
+        return {}
     signature = inspect.signature(cls.__init__, follow_wrapped=True)
     return signature.parameters
 
 
 def get_call(cls):
-    if cls is None:
+    if cls is None or not hasattr(cls, '__call__'): # noqa: B004
         return []
     signature = inspect.signature(cls.__call__, follow_wrapped=True)
     return signature.parameters