function throttle() {
    return new Promise((resolve, reject) => {
        // Get current time in ms
        const now = new Date().getTime()

        // Get difference since last request
        const difference = now - this.delay_last_req

        // Save new last request time
        this.delay_last_req = now

        // Check if difference is large enough
        const limit = 275 - difference + (this.delay_next_int - now)

        if (difference >= limit) {
            resolve()
        } else {
            setTimeout(() => {
                // ??
            }, limit - difference)
        }
    })
}