chore(internal): avoid errors for isinstance checks on proxies

Author: stainless-app[bot]

src/replicate/_utils/_proxy.py

@@ -46,7 +46,10 @@ def __dir__(self) -> Iterable[str]:
     @property  # type: ignore
     @override
     def __class__(self) -> type:  # pyright: ignore
-        proxied = self.__get_proxied__()
+        try:
+            proxied = self.__get_proxied__()
+        except Exception:
+            return type(self)
         if issubclass(type(proxied), LazyProxy):
             return type(proxied)
         return proxied.__class__

tests/test_utils/test_proxy.py

@@ -21,3 +21,14 @@ def test_recursive_proxy() -> None:
     assert dir(proxy) == []
     assert type(proxy).__name__ == "RecursiveLazyProxy"
     assert type(operator.attrgetter("name.foo.bar.baz")(proxy)).__name__ == "RecursiveLazyProxy"
+
+
+def test_isinstance_does_not_error() -> None:
+    class AlwaysErrorProxy(LazyProxy[Any]):
+        @override
+        def __load__(self) -> Any:
+            raise RuntimeError("Mocking missing dependency")
+
+    proxy = AlwaysErrorProxy()
+    assert not isinstance(proxy, dict)
+    assert isinstance(proxy, LazyProxy)