title: Slack API: Retrieve all member emails from a slack channel
body: <p>Given the name of a slack channel, is there a way to retrieve a list of emails of all the members in that channel? I tried looking in the slack api docs but couldn't find the method I need to make this happen (<a href="https://api.slack.com/methods" rel="noreferrer">https://api.slack.com/methods</a>).</p>