setPortraitHash()

/**
   * Set the Collective Portrait's hash.
   *
   * @remarks
   * Setting the Collective Portrait's hash will update the Collective Portrait's hash to the new hash.
   * Setting the Collective Portrait's hash requires to own the minimum number of shares required to control the Collective Portrait.
   *
   * @param {CollectivePortraitName | number} identity - The name of the Collective Portrait that the user would like to set the hash for.
   * @param {string} hash - The new hash to set the Collective Portrait's hash to.
   * @returns {ethers.ContractTransaction} - The transaction object of the transaction that sets the Collective Portrait's hash.
   * @beta
   * @async
   */
  setPortraitHash(
    identity: CollectivePortraitName | number,
    hash: string,
  ): ethers.ContractTransaction {
    const id =
      typeof identity === 'number' ? identity : this.getTokenIdByName(identity);
    return this.portrait.portraitCollectiveContract.setPortraitHash(id, hash);
  }