getAuctionStartTime()

/**
   * Get the auction start time of the Collective Portrait.
   *
   * @remarks
   * The auction start time is the time at which the Collective Portrait will be put up for auction.
   * The auction start time is equal to the valid until time + grace period.
   * It is recommended to use this in conjunction with the timestamp from the block. You can use the Ethers library to get the timestamp from the block.
   *
   * @param {CollectivePortraitName | number} identity - The name of the Collective Portrait that the user would like to get the auction start time for.
   * @returns {number} - The auction start time of the Collective Portrait.
   * @beta
   * @async
   */
  getAuctionStartTime(identity: CollectivePortraitName | number): number {
    const validUntil = this.getValidUntil(identity);
    return validUntil + this.getGracePeriod();
  }