Frimko

import React, { Component } from 'react'
import { PropTypes } from 'prop-types' // можно и import PropTypes from 'prop-types'
... 
ComputersList.propTypes = {
  data: PropTypes.shape({
    rows: PropTypes.array.isRequired,
    isFetching: PropTypes.bool.isRequired,
  }).isRequired,
  onlineSessions: PropTypes.array.isRequired,
  onChangeSort: PropTypes.func.isRequired,
}