Добавление пользователя на канал Twilio.

Есть ли способ добавить пользователя в канал Twilio с помощью REST API?

from twilio.rest import Client

# Initialize the client
account = "ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
token = "your_auth_token"
client = Client(account, token)

# Update the channel
user = client.chat \
                .services("ISXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX").users.list()[0]
channel = client.chat \
                .services("ISXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX") \
                .channels("CHXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX").list()[0]
# How to add user to channel?