async getMinutelyStatBean(timestamp) {
        if (this.lastMinutelyStatBean && this.lastMinutelyStatBean.timestamp === timestamp) {
            return this.lastMinutelyStatBean;
        }

        let bean = await R.findOne("stat_minutely", " monitor_id = ? AND timestamp = ?", [
            this.monitorID,
            timestamp,
        ]);

        if (!bean) {
            bean = R.dispense("stat_minutely");
            bean.monitor_id = this.monitorID;
            bean.timestamp = timestamp;
        }

        this.lastMinutelyStatBean = bean;
        return this.lastMinutelyStatBean;
    }
Get the minutely stat bean
@param {number} timestamp milliseconds
@returns {Promise<import("redbean-node").Bean>} stat_minutely bean