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-rw-r--r--clang-tools-extra/clang-tidy/abseil/DurationRewriter.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/clang-tools-extra/clang-tidy/abseil/DurationRewriter.h b/clang-tools-extra/clang-tidy/abseil/DurationRewriter.h
index 97103b64785..339511f9ac5 100644
--- a/clang-tools-extra/clang-tidy/abseil/DurationRewriter.h
+++ b/clang-tools-extra/clang-tidy/abseil/DurationRewriter.h
@@ -65,7 +65,7 @@ llvm::Optional<DurationScale> getScaleForInverse(llvm::StringRef Name);
/// Assuming `Node` has type `double` or `int` representing a time interval of
/// `Scale`, return the expression to make it a suitable `Duration`.
-llvm::Optional<std::string> rewriteExprFromNumberToDuration(
+std::string rewriteExprFromNumberToDuration(
const ast_matchers::MatchFinder::MatchResult &Result, DurationScale Scale,
const Expr *Node);
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