Create torch_2_8 apis (#2419)

Signed-off-by: Justin Chu <[email protected]>

Author: justinchuby

onnxscript/_framework_apis/torch_2_8.py

@@ -0,0 +1,21 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT License.
+"""Stable APIs for PyTorch 2.7."""
+
+from __future__ import annotations
+
+__all__ = [
+    "check_model",
+    "convert_version",
+    "get_torchlib_ops",
+    "optimize",
+    "save_model_with_external_data",
+]
+
+from onnxscript._framework_apis.torch_2_6 import (
+    check_model,
+    convert_version,
+    get_torchlib_ops,
+    optimize,
+    save_model_with_external_data,
+)