Method replayStep

src/chart/session.js:421–432

* Fetch x additional previous periods/candles values * @param {number} number Number of additional periods/candles you want to fetch * @returns {Promise} Raise when the data has been fetched

(number = 1)

   * @returns {Promise} Raise when the data has been fetched
   */
  replayStep(number = 1) {
    return new Promise((cb) => {
      if (!this.#replayMode) {
        this.#handleError('No replay session');
        return;
      }

      const reqID = genSessionID('rsq_step');
      this.#client.send('replay_step', [this.#replaySessionID, reqID, number]);
      this.#replayOKCB[reqID] = () => { cb(); };
    });
  }

  /**
   * Start fetching a new period/candle every x ms