diff -r 7ec1cfe19a24 -r a4137aedcb3a include/dolfinx_access/minmax_p2.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/dolfinx_access/minmax_p2.h	Thu Feb 26 09:32:12 2026 -0500
@@ -0,0 +1,13 @@
+#pragma once
+#include "nanobind_helpers.h"
+
+namespace dolfinx_access {
+    struct CoordValuePair;
+
+    extern CoordValuePair min_Function_f64_p2(Function_f64 const* f);
+    extern CoordValuePair max_Function_f64_p2(Function_f64 const* f);
+    extern CoordValuePair minmax_Function_f64_p2(Function_f64 const* f, bool max);
+
+} // namespace dolfinx_access
+
+// extern "C" PyObject* PyInit_dolfinx_access();