getAuctionPrice()

/**
   * Get the auction price of the Collective Portrait.
   *
   * @remarks
   * The auction price is the price of the Collective Portrait for 1 year.
   * If years > 1, the function will only return the price of the Collective Portrait for 1 year + the price of the Collective Portrait for the remaining years.
   * If the Collective Portrait is not up for auction, this function will throw an error.
   *
   * @param {CollectivePortraitName | number} identity - The name of the Collective Portrait that the user would like to get the auction price for.
   * @param {number} years - The number of years that the user would like to register the Collective Portrait for.
   * @returns {number} - The auction price of the Collective Portrait.
   * @beta
   * @async
   */
  getAuctionPrice(
    identity: CollectivePortraitName | number,
    years: number,
  ): number {
    // Requires the auction to be active
    if (!this.isAuction(identity)) {
      throw new Error('Auction is not active');
    }
    return this.getPrice(identity, years);
  }