@mui/system/modern/responsivePropType/responsivePropType.js

MUI System is a set of CSS utilities to help you build custom designs more efficiently. It makes it possible to rapidly lay out custom designs.

import PropTypes from 'prop-types';
const responsivePropType = process.env.NODE_ENV !== 'production' ? PropTypes.oneOfType([PropTypes.number, PropTypes.string, PropTypes.object, PropTypes.array]) : {};
export default responsivePropType;