[Model] Add native MAGI-2 Preview diffusion support (#5918)

Signed-off-by: Hongsheng Liu <liuhongsheng4@huawei.com>
Signed-off-by: hsliuustc0106 <liuhongsheng4@huawei.com>

vllm_omni/diffusion/models/magi2/__init__.py

@@ -0,0 +1,21 @@
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM-Omni project
+
+"""SandAI MAGI-2 Preview diffusion support."""
+
+from __future__ import annotations
+
+from typing import Any
+
+__all__ = ["Magi2Pipeline", "get_magi2_post_process_func"]
+
+
+def __getattr__(name: str) -> Any:
+    if name in __all__:
+        from .pipeline_magi2 import Magi2Pipeline, get_magi2_post_process_func
+
+        return {
+            "Magi2Pipeline": Magi2Pipeline,
+            "get_magi2_post_process_func": get_magi2_post_process_func,
+        }[name]
+    raise AttributeError(name)