Method push_back

lesson6-Segmentation/json.hpp:11828–11831

! @brief append an unescaped token at the end of the reference pointer @param[in] token token to add @complexity Amortized constant. @liveexample{The example shows the result of `push_back` for different JSON Pointers.,json_pointer__push_back} @since version 3.6.0 */

    @since version 3.6.0
    */
    void push_back(const std::string& token)
    {
        reference_tokens.push_back(token);
    }

    /// @copydoc push_back(const std::string&)
    void push_back(std::string&& token)