get idlePollFrequency() {
    const frequency = this.config?.idlePollFrequency ?? IDLE_POLLING_FREQUENCY_RATIO_DEFAULT * this.pollFrequency
    if (frequency < this.pollFrequency * IDLE_POLLING_FREQUENCY_RATIO_MIN) {
      return IDLE_POLLING_FREQUENCY_RATIO_MIN * this.pollFrequency
    }