I created oneToMany relation but how I can get the single record belongs to the many record in Sequalize

Question

Tagcategories Model

export const TagCategories = sequelize.define(
  "tag_categories",
  {
    categoryId: {
      type: DataTypes.INTEGER,
      field: "category_id",
      autoIncrement: true,
      primaryKey: true,
    },
    title: {
      type: DataTypes.STRING(50),
      field: "title",
      allowNull: false,
      unique: true,
    },

  },

);

TagCategories.hasMany(TagGroups, {
  foreignKey: "categoryId",
  sourceKey: "categoryId",
});
export default TagCategories;

TagGroups Model

export const TagGroups = sequelize.define(
  "tag_groups",
  {
    tagGroupId: {
      type: DataTypes.INTEGER,
      field: "tag_group_id",
      autoIncrement: true,
      primaryKey: true,
    },

    categoryId: {
      type: DataTypes.INTEGER,
      field: "category_id",
      allowNull: false,
    },

    title: {
      type: DataTypes.STRING(50),
      field: "title",
      allowNull: false,
      unique: true,
    },
  },
);

In the above models I establish oneToMany relationship between the TagCategories and TagGroups

But I want to fetch the record from the TagGroup table with the TagCategories details.

Thanks in advance