feat: Updated OpenAPI spec (#209)

Co-authored-by: github-actions[bot] <bot@openai.com>

Author: HavenDV

src/libs/tryAGI.OpenAI/openapi.yaml

@@ -8550,6 +8550,10 @@ components:
         discriminator:
           propertyName: type
         x-stainless-go-variant-constructor: skip
+        x-stainless-naming:
+          python:
+            model_name: chat_completion_message_tool_call_union
+            param_model_name: chat_completion_message_tool_call_union_param
       description: 'The tool calls generated by the model, such as function calls.'
     ChatCompletionModalities:
       type: array