Overview of ProgressBar, SeekBar and RatingBar

We want to set OnSeekBarChangeListener but something is missing in the snippet bellow! Type in the part of the line to make this code work.

seekBar.setOnSeekBarChangeListener(object : SeekBar.OnSeekBarChangeListener {
    override fun onProgressChanged(sb: SeekBar, progress: Int, fromUser: Boolean) {
       // some work
    }
    
    // Something is missing here!
    override fun _______________(seekBar: SeekBar) {
        // some work
    }
        
    override fun onStopTrackingTouch(seekBar: SeekBar) {
        // some work
    }
        
})