[Config Refactor] sentinel default precedence (#3078)

Signed-off-by: lishunyang <lishunyang12@163.com>
Signed-off-by: xiaohajiayou <923390377@qq.com>
Co-authored-by: lishunyang <lishunyang12@163.com>

examples/offline_inference/mammothmodal2_preview/run_mammothmoda2_image_summarize.py

@@ -19,6 +19,7 @@ from vllm import SamplingParams
 from vllm.multimodal.image import convert_image_mode
 
 from vllm_omni import Omni
+from vllm_omni.engine.arg_utils import nullify_stage_engine_defaults
 
 DEFAULT_SYSTEM = "You are a helpful assistant."
 DEFAULT_QUESTION = "Please summarize the content of this image."
@@ -48,6 +49,7 @@ def parse_args() -> argparse.Namespace:
         action="store_true",
         help="Enable diffusion pipeline profiler to display stage durations.",
     )
+    nullify_stage_engine_defaults(parser)
     return parser.parse_args()
 
 

examples/offline_inference/mammothmodal2_preview/run_mammothmoda2_t2i.py

@@ -29,6 +29,7 @@ from PIL import Image
 from vllm.sampling_params import SamplingParams
 
 from vllm_omni import Omni
+from vllm_omni.engine.arg_utils import nullify_stage_engine_defaults
 
 logging.basicConfig(level=logging.INFO, format="%(asctime)s - %(levelname)s - %(message)s")
 logger = logging.getLogger(__name__)
@@ -117,6 +118,7 @@ def parse_args() -> argparse.Namespace:
     )
     p.add_argument("--out", type=str, default="output.png", help="Path to save the generated image.")
     p.add_argument("--trust-remote-code", action="store_true", help="Trust remote code when loading the model.")
+    nullify_stage_engine_defaults(p)
     args = p.parse_args()
     if not args.prompt:
         args.prompt = ["A stylish woman with sunglasses riding a motorcycle in NYC."]