Convert url to objref in openai image generations

Author: ajhai

llmstack/processors/providers/openai/images_generations.py

@@ -98,7 +98,6 @@ class ImagesGenerationsConfiguration(ApiProcessorSchema):
 class ImagesGenerations(
     ApiProcessorInterface[ImagesGenerationsInput, ImagesGenerationsOutput, ImagesGenerationsConfiguration],
 ):
-
     """
     OpenAI Images Generations API
     """
@@ -136,6 +135,11 @@ def process(self) -> dict:
             response_format=self._config.response_format,
         )
 
+        # Convert images to objrefs
+        for image in result.data:
+            if image.url:
+                image.url = self._upload_asset_from_url(asset=image.url)
+
         async_to_sync(self._output_stream.write)(
             ImagesGenerationsOutput(
                 data=[image.b64_json or image.url for image in result.data],