diff --git a/examples/check_apikey_env.py b/examples/check_apikey_env.py
index 23b8f69..5d06d01 100644
--- a/examples/check_apikey_env.py
+++ b/examples/check_apikey_env.py
@@ -1,6 +1,5 @@
 import os
 
-
 def check_apikey():
     api_key = os.getenv('ZAI_API_KEY')
     if api_key and api_key.strip():
@@ -11,4 +10,4 @@ def check_apikey():
 
 
 if __name__ == '__main__':
-    check_apikey() 
\ No newline at end of file
+    check_apikey()
\ No newline at end of file
diff --git a/examples/video_models_examples.py b/examples/video_models_examples.py
index f73f2d4..981e709 100644
--- a/examples/video_models_examples.py
+++ b/examples/video_models_examples.py
@@ -418,7 +418,11 @@ async def main():
     sample_image_url = "https://i0.sinaimg.cn/edu/2011/1125/U4999P42DT20111125164101.jpg"
     sample_first_frame = "https://gd-hbimg.huaban.com/ccee58d77afe8f5e17a572246b1994f7e027657fe9e6-qD66In_fw1200webp"
     sample_last_frame = "https://gd-hbimg.huaban.com/cc2601d568a72d18d90b2cc7f1065b16b2d693f7fa3f7-hDAwNq_fw1200webp"
-    ref_image_url = ["ref1", "ref2", "ref3"]
+    ref_image_url = [
+        "https://gd-hbimg.huaban.com/ccee58d77afe8f5e17a572246b1994f7e027657fe9e6-qD66In_fw1200webp", 
+        "https://gd-hbimg.huaban.com/cc2601d568a72d18d90b2cc7f1065b16b2d693f7fa3f7-hDAwNq_fw1200webp", 
+        "https://gd-hbimg.huaban.com/cc2601d568a72d18d90b2cc7f1065b16b2d693f7fa3f7-hDAwNq_fw1200webp"
+        ]
 
     try:
         # 1. cogvideox-3 text-to-video
@@ -467,6 +471,7 @@ async def main():
 
         # 5. viduq1-text text-to-video
         print("\n" + "="*50)
+        print(os.environ.get("ZAI_API_KEY"))
         result5 = await examples.viduq1_text_to_video(
             prompt="Peter Rabbit driving a car, wandering on the road, with a happy and joyful expression on his face.",
             style="general",
diff --git a/src/zai/types/video/video_create_params.py b/src/zai/types/video/video_create_params.py
index 0b66c44..197fe89 100644
--- a/src/zai/types/video/video_create_params.py
+++ b/src/zai/types/video/video_create_params.py
@@ -30,7 +30,7 @@ class VideoCreateParams(TypedDict, total=False):
 	"""
 	model: str
 	prompt: str
-	image_url: str | list | dict
+	image_url: str | list[str] | dict
 	quality: str
 	with_audio: bool
 	size: str