add

2026-10-15 20:36:59 +08:00
commit 6bf949949c
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+"""Experimental module exposing the `MISSING` sentinel.
+
+!!! warning "Deprecated"
+    The `MISSING` sentinel is no longer experimental, and should be imported from the main `pydantic` module.
+"""
+
+import warnings
+from typing import TYPE_CHECKING, Any
+
+from ..warnings import PydanticDeprecatedSince214
+
+if TYPE_CHECKING:
+    from pydantic_core import MISSING
+
+__all__ = ('MISSING',)
+
+
+def __getattr__(name: str) -> Any:
+    if name == 'MISSING':
+        warnings.warn(
+            'The `MISSING` sentinel is no longer experimental. Import it from the main `pydantic` module instead.',
+            category=PydanticDeprecatedSince214,
+            stacklevel=2,
+        )
+        from pydantic_core import MISSING
+
+        return MISSING
+    else:  # pragma: no cover
+        raise AttributeError(f'module {__name__!r} has no attribute {name!r}')