Sequelize JSON vs JSONB with Postgres

sequelize-models-json-jsonb.js

'use strict';
const {
  Model
} = require('sequelize');
module.exports = (sequelize, DataTypes) => {
  class Service extends Model {
    /**
     * Helper method for defining associations.
     * This method is not a part of Sequelize lifecycle.
     * The `models/index` file will call this method automatically.
     */
    static associate(models) {
      // define association here
      this.hasMany(models.Proof)
      this.hasMany(models.Parser)
    }
  };
  Service.init({
      name: DataTypes.STRING,
      public: {
        type: DataTypes.BOOLEAN,
        defaultValue: false
      },
      proofResources: {
        type: DataTypes.JSON,
        allowNull: false,
        get() {
          return JSON.parse(this.getDataValue("proofResources"));
        }, 
        set(value) {
          return this.setDataValue("proofResources", JSON.stringify(value));
        }
      },
      proofResourcesJSONB: {
        type: DataTypes.JSONB
      }
    }
  }, {
    sequelize,
    modelName: 'Service',
  });
  return Service;
};