usage: telegram-tools schedule post [-h] --chat CHAT [--topic TOPIC]
                                    --text TEXT (--at TIME | --every REPEAT)

options:
  -h, --help      show this help message and exit
  --chat CHAT     Chat/channel username, link, or ID
  --topic TOPIC   Topic ID to post into; omit for the chat itself
  --text TEXT     The message, or - to read it from stdin
  --at TIME       One ISO 8601 moment; a time with no offset is this machine's
                  local time
  --every REPEAT  Repeating: an interval like 15m, 2h, 1d, or a five-field
                  cron expression
