How to use gemini-1.0-pro-vision on video?

[tisu19021997]

I'm using the sample code but it keeps raising Unauthenticated error. Using the gemini-1.0-pro works just fine on text.

Unauthenticated: 401 Request is missing required authentication credential. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.

How can I set the authentication in OAuth 2? I had set up and copy the API key but don't know where to put it. Thanks for any help.

Code I used:

gemini_pro_vision_model = GenerativeModel("gemini-1.0-pro-vision")
response = gemini_pro_vision_model.generate_content([
  "What is in the video? ",
  generative_models.Part.from_uri("gs://youtube-videos/sample.mp4", mime_type="video/mp4"),
], stream=True)

for chunk in response:
  print(chunk.text)