From 7cb9fe16d1b8380ea4e203ad0ff4a45eb4d5338f Mon Sep 17 00:00:00 2001
From: CEL Dev Team <cel-dev@google.com>
Date: Tue, 19 May 2026 00:47:39 -0700
Subject: [PATCH] No public description

PiperOrigin-RevId: 917666263
---
 common/types/opaque_type.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/types/opaque_type.cc b/common/types/opaque_type.cc
index 002319d1d..9f16f151c 100644
--- a/common/types/opaque_type.cc
+++ b/common/types/opaque_type.cc
@@ -94,7 +94,7 @@ bool OpaqueType::IsOptional() const {
   return name() == OptionalType::kName && GetParameters().size() == 1;
 }
 
-absl::optional<OptionalType> OpaqueType::AsOptional() const {
+std::optional<OptionalType> OpaqueType::AsOptional() const {
   if (IsOptional()) {
     return OptionalType(absl::in_place, *this);
   }