Why, when requesting data through Sequelize, an error is generated that you need to specify an alias?

Question

PostgreSQL

I use:
"sequelize": "^6.6.5",
"sequelize-typescript": "^2.1.0",

There is a company data model, which can be a child of another company and, accordingly, there is:

@ForeignKey(() => Company)
@Column({
    type: DataType.INTEGER
})
parentId: number;

@BelongsTo(() => Company, "parentId")
parent: Company;

@HasMany(() => Company, "parentId")
subsidiaries: Company[];

Through migration I add to the database:

"parentId": {
          "onDelete": "NO ACTION",
          "onUpdate": "CASCADE",
          "references": {
            "model": "companies",
            "key": "id"
          },
          "allowNull": true,
          "type": Sequelize.INTEGER
        },

Everything is fine in the database:



But when I request from the database through

const company = await Company.findByPk(companyId, { include: [{ model: Company, as: "parentId" }] });

An error is thrown:
Company is associated to Company multiple times. To identify the correct association, you must use the 'as' keyword to specify the alias of the association you want to include.