diff --git a/internal/testlog/testlog.go b/internal/testlog/testlog.go
index 94c9377e14..e5e96ac85f 100644
--- a/internal/testlog/testlog.go
+++ b/internal/testlog/testlog.go
@@ -98,7 +98,11 @@ func LoggerWithHandler(t *testing.T, handler slog.Handler) log.Logger {
 	}
 }
 
-func (l *logger) Write(level slog.Level, msg string, ctx ...any) {}
+func (l *logger) Handler() slog.Handler {
+	return l.l.Handler()
+}
+
+func (l *logger) Write(level slog.Level, msg string, ctx ...interface{}) {}
 
 func (l *logger) Enabled(ctx context.Context, level slog.Level) bool {
 	return l.l.Enabled(ctx, level)
diff --git a/log/logger.go b/log/logger.go
index 1a91f11da8..0befc27e58 100644
--- a/log/logger.go
+++ b/log/logger.go
@@ -136,6 +136,9 @@ type Logger interface {
 
 	// Enabled reports whether l emits log records at the given context and level.
 	Enabled(ctx context.Context, level slog.Level) bool
+
+	// Handler returns the underlying handler of the inner logger.
+	Handler() slog.Handler
 }
 
 type logger struct {
@@ -149,6 +152,10 @@ func NewLogger(h slog.Handler) Logger {
 	}
 }
 
+func (l *logger) Handler() slog.Handler {
+	return l.inner.Handler()
+}
+
 // write logs a message at the specified level:
 func (l *logger) Write(level slog.Level, msg string, attrs ...any) {
 	if !l.inner.Enabled(context.Background(), level) {