import * as React from 'react';
import { Table, TableBody, TableRow, TableCell, TableHead, TableSortLabel, StyleRulesCallback, Theme, WithStyles, withStyles } from '@material-ui/core';
import { DataColumn, SortDirection } from './data-column';
import * as React from 'react';
import { Table, TableBody, TableRow, TableCell, TableHead, TableSortLabel, StyleRulesCallback, Theme, WithStyles, withStyles } from '@material-ui/core';
import { DataColumn, SortDirection } from './data-column';