Fix Python 3.9 errors

comfy_api/latest/__init__.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from typing import Type, TYPE_CHECKING
 from comfy_api.internal import ComfyAPIBase
 from comfy_api.internal.singleton import ProxiedSingleton

comfy_api_nodes/apis/request_logger.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import os
 import datetime
 import json

comfy_api_nodes/nodes_gemini.py

@@ -2,6 +2,8 @@
 API Nodes for Gemini Multimodal LLM Usage via Remote API
 See: https://cloud.google.com/vertex-ai/generative-ai/docs/model-reference/inference
 """
+from __future__ import annotations
+
 
 import os
 from enum import Enum

comfy_execution/progress.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from typing import TypedDict, Dict, Optional, Tuple
 from typing_extensions import override
 from PIL import Image