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-rw-r--r--third_party/python/attrs/src/attr/converters.pyi12
1 files changed, 12 insertions, 0 deletions
diff --git a/third_party/python/attrs/src/attr/converters.pyi b/third_party/python/attrs/src/attr/converters.pyi
new file mode 100644
index 0000000000..63b2a3866e
--- /dev/null
+++ b/third_party/python/attrs/src/attr/converters.pyi
@@ -0,0 +1,12 @@
+from typing import TypeVar, Optional, Callable, overload
+from . import _ConverterType
+
+_T = TypeVar("_T")
+
+def optional(
+ converter: _ConverterType[_T]
+) -> _ConverterType[Optional[_T]]: ...
+@overload
+def default_if_none(default: _T) -> _ConverterType[_T]: ...
+@overload
+def default_if_none(*, factory: Callable[[], _T]) -> _ConverterType[_T]: ...