Const sequelize
sequelize: Sequelize = new Sequelize(process.env.DB_DATABASE || '', process.env.DB_USERNAME || '', process.env.DB_PASSWORD || '', {host: process.env.DB_HOST,dialect: 'mysql',modelPaths: [path.join(__dirname, 'db/models')],logging: sequelizeLogger,define: {charset: 'utf8mb4',collate: 'utf8mb4_unicode_ci',freezeTableName: true,timestamps: false,},pool: {max: 5,min: 0,idle: 10000,acquire: 30000,},})