update ceph source to reef 18.1.2

[ceph.git] / ceph / src / jaegertracing / opentelemetry-cpp / third_party / nlohmann-json / include / nlohmann / detail / meta / identity_tag.hpp

#pragma once

namespace nlohmann
{
namespace detail
{
// dispatching helper struct
template <class T> struct identity_tag {};
}  // namespace detail
}  // namespace nlohmann