fix test

integ/test_codegen.py

@@ -163,7 +163,8 @@ def test_training_and_inference(self):
             content_type="text/csv",
             accept="application/csv",
         )
-        assert invoke_result.body.payload_part
+
+        assert invoke_result["Body"]["PayloadPart"]
 
     def test_intelligent_defaults(self):
         os.environ["SAGEMAKER_CORE_ADMIN_CONFIG_OVERRIDE"] = (

src/sagemaker_core/main/resources.py

@@ -8389,7 +8389,7 @@ def invoke_with_response_stream(
         inference_component_name: Optional[str] = Unassigned(),
         session: Optional[Session] = None,
         region: Optional[str] = None,
-    ) -> Optional[InvokeEndpointWithResponseStreamOutput]:
+    ) -> Optional[object]:
         """
         Invokes a model at the specified endpoint to return the inference response as a stream.
 
@@ -8406,7 +8406,7 @@ def invoke_with_response_stream(
             region: Region name.
 
         Returns:
-            InvokeEndpointWithResponseStreamOutput
+            object
 
         Raises:
             botocore.exceptions.ClientError: This exception is raised for AWS service related errors.
@@ -8449,8 +8449,7 @@ def invoke_with_response_stream(
         response = client.invoke_endpoint_with_response_stream(**operation_input_args)
         logger.debug(f"Response: {response}")
 
-        transformed_response = transform(response, "InvokeEndpointWithResponseStreamOutput")
-        return InvokeEndpointWithResponseStreamOutput(**transformed_response)
+        return response
 
 
 class EndpointConfig(Base):

src/sagemaker_core/main/shapes.py

@@ -139,24 +139,6 @@ class ResponseStream(Base):
     internal_stream_failure: Optional[InternalStreamFailure] = Unassigned()
 
 
-class InvokeEndpointWithResponseStreamOutput(Base):
-    """
-    InvokeEndpointWithResponseStreamOutput
-
-    Attributes
-    ----------------------
-    body
-    content_type: The MIME type of the inference returned from the model container.
-    invoked_production_variant: Identifies the production variant that was invoked.
-    custom_attributes: Provides additional information in the response about the inference returned by a model hosted at an Amazon SageMaker endpoint. The information is an opaque value that is forwarded verbatim. You could use this value, for example, to return an ID received in the CustomAttributes header of a request or other metadata that a service endpoint was programmed to produce. The value must consist of no more than 1024 visible US-ASCII characters as specified in Section 3.3.6. Field Value Components of the Hypertext Transfer Protocol (HTTP/1.1). If the customer wants the custom attribute returned, the model must set the custom attribute to be included on the way back.  The code in your model is responsible for setting or updating any custom attributes in the response. If your code does not set this value in the response, an empty value is returned. For example, if a custom attribute represents the trace ID, your model can prepend the custom attribute with Trace ID: in your post-processing function. This feature is currently supported in the Amazon Web Services SDKs but not in the Amazon SageMaker Python SDK.
-    """
-
-    body: ResponseStream
-    content_type: Optional[str] = Unassigned()
-    invoked_production_variant: Optional[str] = Unassigned()
-    custom_attributes: Optional[str] = Unassigned()
-
-
 class ModelError(Base):
     """
     ModelError

src/sagemaker_core/main/utils.py

@@ -500,8 +500,7 @@ def _serialize_dict(value: Dict) -> dict:
     """
     serialized_dict = {}
     for k, v in value.items():
-        serialize_result = serialize(v)
-        if serialize_result is not None:
+        if (serialize_result := serialize(v)) is not None:
             serialized_dict.update({k: serialize_result})
     return serialized_dict
 
@@ -518,8 +517,7 @@ def _serialize_list(value: List) -> list:
     """
     serialized_list = []
     for v in value:
-        serialize_result = serialize(v)
-        if serialize_result is not None:
+        if (serialize_result := serialize(v)) is not None:
             serialized_list.append(serialize_result)
     return serialized_list
 
@@ -536,8 +534,7 @@ def _serialize_shape(value: Any) -> dict:
     """
     serialized_dict = {}
     for k, v in vars(value).items():
-        serialize_result = serialize(v)
-        if serialize_result is not None:
+        if (serialize_result := serialize(v)) is not None:
             key = snake_to_pascal(k) if is_snake_case(k) else k
             serialized_dict.update({key[0].upper() + key[1:]: serialize_result})
     return serialized_dict

src/sagemaker_core/tools/additional_operations.json

@@ -130,7 +130,7 @@
             "operation_name": "InvokeEndpointWithResponseStream",
             "resource_name": "Endpoint",
             "method_name": "invoke_with_response_stream",
-            "return_type": "InvokeEndpointWithResponseStreamOutput",
+            "return_type": "object",
             "method_type": "object",
             "service_name": "sagemaker-runtime"
         }

src/sagemaker_core/tools/resources_codegen.py

@@ -55,6 +55,7 @@
     REFRESH_METHOD_TEMPLATE,
     RESOURCE_BASE_CLASS_TEMPLATE,
     RETURN_ITERATOR_TEMPLATE,
+    RETURN_WITHOUT_DESERIALIZATION_TEMPLATE,
     SERIALIZE_INPUT_TEMPLATE,
     STOP_METHOD_TEMPLATE,
     DELETE_METHOD_TEMPLATE,
@@ -1373,6 +1374,11 @@ def generate_method(self, method: Method, resource_attributes: list):
             return_type = f"Optional[{method.return_type}]"
             deserialize_response = DESERIALIZE_RESPONSE_TO_BASIC_TYPE_TEMPLATE
             return_string = f"Returns:\n" f"    {method.return_type}\n"
+        elif method.return_type == "object":
+            # if the return type is object, return the response without deserialization
+            return_type = f"Optional[{method.return_type}]"
+            deserialize_response = RETURN_WITHOUT_DESERIALIZATION_TEMPLATE
+            return_string = f"Returns:\n" f"    {method.return_type}\n"
         else:
             if method.return_type == "cls":
                 return_type = f'Optional["{method.resource_name}"]'

src/sagemaker_core/tools/templates.py

@@ -553,6 +553,9 @@ def {method_name}(
 DESERIALIZE_RESPONSE_TO_BASIC_TYPE_TEMPLATE = """
     return list(response.values())[0]"""
 
+RETURN_WITHOUT_DESERIALIZATION_TEMPLATE = """
+    return response"""
+
 RETURN_ITERATOR_TEMPLATE = """
     return ResourceIterator(
 {resource_iterator_args}

tst/generated/test_resources.py

@@ -295,6 +295,8 @@ def test_resources(self, session, mock_transform):
                                     operation_info["return_type"]
                                 ]
                             }
+                        elif operation_info["return_type"] == "object":
+                            return_value = {"return_value": None}
                         else:
                             return_cls = self.SHAPE_CLASSES_BY_SHAPE_NAME[
                                 operation_info["return_type"]

tst/tools/test_resources_codegen.py

@@ -873,7 +873,7 @@ def invoke_with_response_stream(
     inference_component_name: Optional[str] = Unassigned(),
     session: Optional[Session] = None,
     region: Optional[str] = None,
-) -> Optional[InvokeEndpointWithResponseStreamOutput]:
+) -> Optional[object]:
     """
     Invokes a model at the specified endpoint to return the inference response as a stream.
     
@@ -890,7 +890,7 @@ def invoke_with_response_stream(
         region: Region name.
     
     Returns:
-        InvokeEndpointWithResponseStreamOutput
+        object
     
     Raises:
         botocore.exceptions.ClientError: This exception is raised for AWS service related errors. 
@@ -932,15 +932,14 @@ def invoke_with_response_stream(
     response = client.invoke_endpoint_with_response_stream(**operation_input_args)
     logger.debug(f"Response: {response}")
 
-    transformed_response = transform(response, 'InvokeEndpointWithResponseStreamOutput')
-    return InvokeEndpointWithResponseStreamOutput(**transformed_response)
+    return response
 '''
         method = Method(
             **{
                 "operation_name": "InvokeEndpointWithResponseStream",
                 "resource_name": "Endpoint",
                 "method_name": "invoke_with_response_stream",
-                "return_type": "InvokeEndpointWithResponseStreamOutput",
+                "return_type": "object",
                 "method_type": "object",
                 "service_name": "sagemaker-runtime",
             }