Is a Slack channel id unique across teams? : <p>Is a Slack <a href="https://api.slack.com/types/channel" rel="noreferrer">channel</a>/<a href="https://api.slack.com/types/group" rel="noreferrer">group</a>/<a href="https://api.slack.com/types/im" rel="noreferrer">im</a>/<a href="https://api.slack.com/types/mpim" rel="noreferrer">mpim</a> id unique across different teams? In other words, can two teams have channels with the same id?</p>

<p>I read the docs, searched on Google and here on SO, but could not get confirmation if channel IDs are unique or not.</p>
