async select(values) {
    const elem = await firstElement.apply(this);
    return await elem.select(values);
  }
Select option or options from a drop down
@param {string[]} values value(s) to be selected
@example

// Select multiple values based on array of values provided
await dropDown('Vehicle:').select(['Car','Van'])
@example
// Select multiple values based on array if indices provided
await dropDown('Vehicle:').select({index : [0,1]})