Method emplace

ext/include/tsl/array-hash/array_set.h:216–218

* @copydoc emplace_ks(const CharT* key, size_type key_size) */

   * @copydoc emplace_ks(const CharT* key, size_type key_size)
   */
  std::pair<iterator, bool> emplace(const std::basic_string_view<CharT>& key) {
    return m_ht.emplace(key.data(), key.size());
  }
#else
  /**
   * @copydoc emplace_ks(const CharT* key, size_type key_size)