Update channel
documentedUpdate channel metadata (branding/in-video promotions).
PUT /channelsChannelsno implementation yet0 runsInput
channel_id*
Channel ID
Channel ID
country
Country code
Country code (e.g., US)
description
Channel description
Branding description
keywords
Channel keywords
Comma-separated keywords
Calls YouTube as you (your API key is your account); keychains.dev holds the credentials.