Update api.py

api.py

@@ -110,7 +110,8 @@ app = FastAPI(description=description,
              license_info={
                  "name": "Apache 2.0",
                  "identifier": "MIT"
-             })
+             },
+             swagger_ui_parameters={"defaultModelsExpandDepth": -1})
 
 
 summ_tokenizer, summ_model = load_summarizer_models()