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-rw-r--r--src/lib/metrics/prometheus.h18
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diff --git a/src/lib/metrics/prometheus.h b/src/lib/metrics/prometheus.h
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+/* Copyright (c) 2020, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+/**
+ * @file prometheus.h
+ * @brief Header for feature/metrics/prometheus.c
+ **/
+
+#ifndef TOR_LIB_METRICS_PROMETHEUS_H
+#define TOR_LIB_METRICS_PROMETHEUS_H
+
+#include "lib/buf/buffers.h"
+#include "lib/metrics/metrics_store_entry.h"
+
+void prometheus_format_store_entry(const metrics_store_entry_t *entry,
+ buf_t *data);
+
+#endif /* !defined(TOR_LIB_METRICS_PROMETHEUS_H) */