import * as React from 'react'; import Slider from '@mui/material/Slider'; function testOnChange() { function handleSliderChange(event: Event, value: unknown) {} function handleSliderChangeCommitted(event: React.SyntheticEvent | Event, value: unknown) {} ; function handleElementChange(event: React.ChangeEvent) {} // @ts-expect-error internally it's whatever even lead to a change in value ; }