| ["amount", "card_present", "is_international", "channel_online", "channel_mobile", "channel_atm", "hour_of_day", "day_of_week", "tx_count_1h", "tx_count_24h", "total_amount_24h", "max_single_tx", "num_countries", "num_devices", "num_merchants", "failed_auths_1h"] |