Method iteration_proxy_value

src/nlohmann/json.hpp:5208–5208

  public:
    explicit iteration_proxy_value() = default;
    explicit iteration_proxy_value(IteratorType it, std::size_t array_index_ = 0)
    noexcept(std::is_nothrow_move_constructible<IteratorType>::value
             && std::is_nothrow_default_constructible<string_type>::value)