How to disable ripple effect?

Questions
1

I want to disable ripple effect bcos it makes unusable my application, so the docs say change it to false with

touch.materialRipple:false

but vs code gives error so I tried wrote ‘touch’ as an object as below but did not work, I need help on this,

var vm = new Vue({
  el: '#app',
  template: '<app/>',
  store,
  framework7: {
    touch: {
      materialRipple: false
    }