How to use the blessed-contrib.picture function in blessed-contrib

const allStudents = fs.readFile('./students.txt', 'utf-8', function (error, data) {
            const studentsArray = data.split(';');
            var pic = contrib.picture(
                { file: './goodmorning.png'
                , cols: 25
                , onReady: (ready)})
             function ready() {screen.render()}
    
            studentsArray.forEach(student => {
                console.log(`Good morning ${student}`)
            });
        })
    }