Add missing future annotations import

discord/template.py

@@ -22,6 +22,8 @@ FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 DEALINGS IN THE SOFTWARE.
 """
 
+from __future__ import annotations
+
 from typing import Any, Optional, TYPE_CHECKING, overload
 from .utils import parse_time, _get_as_snowflake, _bytes_to_base64_data
 from .enums import VoiceRegion