text: module.exports = (sequelize, DataTypes) => {
      const Comment = sequelize.define('Comment', {
          content: {
              type: DataTypes.TEXT,
              allowNull: false,
          }
      }, {
          charset: 'utf8mb4',
          collate: 'utf8mb4_general_ci'
      });
      Comment.associate = (db) => {
          db.Comment.belongsTo(db.User);
          db.Comment.belongsTo(db.History);
      };
      return Comment;
  }