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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/vespalib/stllike/string.h>
#include "handle.h"
namespace vespalib::metrics {
using LabelValue = vespalib::string;
struct LabelTag {};
/**
* Opaque handle representing an unique label value.
**/
struct Label : Handle<LabelTag>
{
explicit Label(size_t id) : Handle(id) {}
static Label from_value(const vespalib::string& value);
const vespalib::string& as_value() const;
};
} // namespace vespalib::metrics
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