ban method
Bans a user and allows to delete messages from deleteMessageDays
number of days.
await guild.ban(member);
Implementation
Future<void> ban(SnowflakeEntity user, {int deleteMessageDays = 0, String? auditReason}) =>
client.httpEndpoints.guildBan(this.id, user.id, deleteMessageDays: deleteMessageDays, auditReason: auditReason);