Python Twitch API Follow

from twitch import TwitchClient
import twitch


client = TwitchClient(client_id='CLIENT ID', oauth_token='TOKEN')
channel = client.channels.get_by_id(44322889)
client.users.follow_channel(user_id=400025983, channel_id=44322889)

This is my code above, but when I try to run it, it says “requests.exceptions.HTTPError: 401 Client Error: Unauthorized for url: https://api.twitch.tv/kraken/users/400025983/follows/channels/44322889”. Any help?