Sequelize async beforeCreate hook giving me an error while setting many to many association

Question

I am using sequelize-typescript in this app and I have a model that currently is trying to hash a password before saving it

account.model.ts

@Table({
  freezeTableName: true,
  tableName: 'accounts',
})
export default class Account extends Model {
  // ... other fields

  @Length({ min: 0, max: 255 })
  @Column({
    comment:
      'optional for social login users and compulsory for users signing up with an email password combination',
  })
  password: string;

  // ...more fields

  @BeforeUpdate
  @BeforeCreate
  static async hashPassword(instance: Account) {
    instance.password = await buildHash(instance.password);
  }
}

My buildHash function is asynchronous in nature and looks like this

import hasher from 'argon2';
const buildHash = (item) => hasher.hash(item);

I am getting an accountId not exists error when I try setting users on the account object

account.service.ts

  static async create(createBody: {
    email: string;
    authenticationTypeId: string;
    emailVerified?: boolean;
    isPrimary?: boolean;
    password?: string;
    pictureUrl?: string;
    socialAccountId?: string;
    username?: string;
    users?: User[];
  }) {
    console.log(createBody);

    const createdAccount: Account = new Account(createBody);

    console.log(createdAccount);

    if (createBody.users) createdAccount.$set('users', createBody.users);

    return createdAccount.save();
  }

Very specifically it has an error at this line saying accountId does not exist

if (createBody.users) createdAccount.$set('users', createBody.users);

If I replace my hasher with a sync function from bcrypt, it works perfectly

import hasher from 'bcrypt';
const buildHash = (item) => hasher.hashSync(item, 12);

The model hook changed appropriately when using bcrypt

  @BeforeUpdate
  @BeforeCreate
  static hashPassword(instance: Account) {
    instance.password = buildHash(instance.password);
  }

Unfortunately argon2 doesnt have a SYNC function and I dont want to change my hashing algorithm back to bcrypt

Can someone kindly tell me how I can wait for the new Account to be created before attempting to update the many to many relationship?