curl --request DELETE \
  --url https://discord.com/api/v10/guilds/{guild_id}/bans/{user_id} \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '{}'

{
  "code": 123,
  "message": "<string>",
  "retry_after": 123,
  "global": true
}