add one updated sample to demonstrate unexpected changes

Author: ctreatma

samples/server/petstore/python-fastapi/src/openapi_server/models/api_response.py

@@ -84,6 +84,11 @@ def from_dict(cls, obj: Dict) -> Self:
         if not isinstance(obj, dict):
             return cls.model_validate(obj)
 
+        # raise errors for additional fields in the input
+        for _key in obj.keys():
+            if _key not in cls.__properties:
+                raise ValueError("Error due to additional fields (not defined in ApiResponse) in the input: " + _key)
+
         _obj = cls.model_validate({
             "code": obj.get("code"),
             "type": obj.get("type"),

samples/server/petstore/python-fastapi/src/openapi_server/models/category.py

@@ -94,6 +94,11 @@ def from_dict(cls, obj: Dict) -> Self:
         if not isinstance(obj, dict):
             return cls.model_validate(obj)
 
+        # raise errors for additional fields in the input
+        for _key in obj.keys():
+            if _key not in cls.__properties:
+                raise ValueError("Error due to additional fields (not defined in Category) in the input: " + _key)
+
         _obj = cls.model_validate({
             "id": obj.get("id"),
             "name": obj.get("name")

samples/server/petstore/python-fastapi/src/openapi_server/models/order.py

@@ -98,6 +98,11 @@ def from_dict(cls, obj: Dict) -> Self:
         if not isinstance(obj, dict):
             return cls.model_validate(obj)
 
+        # raise errors for additional fields in the input
+        for _key in obj.keys():
+            if _key not in cls.__properties:
+                raise ValueError("Error due to additional fields (not defined in Order) in the input: " + _key)
+
         _obj = cls.model_validate({
             "id": obj.get("id"),
             "petId": obj.get("petId"),

samples/server/petstore/python-fastapi/src/openapi_server/models/pet.py

@@ -109,6 +109,11 @@ def from_dict(cls, obj: Dict) -> Self:
         if not isinstance(obj, dict):
             return cls.model_validate(obj)
 
+        # raise errors for additional fields in the input
+        for _key in obj.keys():
+            if _key not in cls.__properties:
+                raise ValueError("Error due to additional fields (not defined in Pet) in the input: " + _key)
+
         _obj = cls.model_validate({
             "id": obj.get("id"),
             "category": Category.from_dict(obj.get("category")) if obj.get("category") is not None else None,

samples/server/petstore/python-fastapi/src/openapi_server/models/tag.py

@@ -83,6 +83,11 @@ def from_dict(cls, obj: Dict) -> Self:
         if not isinstance(obj, dict):
             return cls.model_validate(obj)
 
+        # raise errors for additional fields in the input
+        for _key in obj.keys():
+            if _key not in cls.__properties:
+                raise ValueError("Error due to additional fields (not defined in Tag) in the input: " + _key)
+
         _obj = cls.model_validate({
             "id": obj.get("id"),
             "name": obj.get("name")

samples/server/petstore/python-fastapi/src/openapi_server/models/user.py

@@ -89,6 +89,11 @@ def from_dict(cls, obj: Dict) -> Self:
         if not isinstance(obj, dict):
             return cls.model_validate(obj)
 
+        # raise errors for additional fields in the input
+        for _key in obj.keys():
+            if _key not in cls.__properties:
+                raise ValueError("Error due to additional fields (not defined in User) in the input: " + _key)
+
         _obj = cls.model_validate({
             "id": obj.get("id"),
             "username": obj.get("username"),