diff --git a/src/numpy-stubs/lib/introspect.pyi b/src/numpy-stubs/lib/introspect.pyi
new file mode 100644
index 00000000..7929981c
--- /dev/null
+++ b/src/numpy-stubs/lib/introspect.pyi
@@ -0,0 +1,3 @@
+__all__ = ["opt_func_info"]
+
+def opt_func_info(func_name: str | None = None, signature: str | None = None) -> dict[str, dict[str, dict[str, str]]]: ...