The above command shows the presence list in Slack.
Alternative examples:
/calamari presence today
/calamari presence yesterday
/calamari presence this week
/calamari presence last week
/calamari presence next week
/calamari presence @john next week
/calamari presence john.white@company.com next month
Note:
If you don't include anyone's email address, the command will display all your colleagues' presence.