text: import React from 'react';
  import {
      Link,
      withRouter,
  } from 'react-router-dom'
  import ListItem from '@material-ui/core/ListItem';
  import ListItemIcon from '@material-ui/core/ListItemIcon';
  import ListItemText from '@material-ui/core/ListItemText';
  import ListSubheader from '@material-ui/core/ListSubheader';
  import DashboardIcon from '@material-ui/icons/Dashboard';
  import ShoppingCartIcon from '@material-ui/icons/ShoppingCart';
  import PeopleIcon from '@material-ui/icons/People';
  import BarChartIcon from '@material-ui/icons/BarChart';
  import LayersIcon from '@material-ui/icons/Layers';
  import AssignmentIcon from '@material-ui/icons/Assignment';
  
  export const mainListItems = (
    <div>
      <ListItem button>
        <ListItemIcon>
          <DashboardIcon />
        </ListItemIcon>
        <ListItemText primary="Dashboard" />
      </ListItem>
      <ListItem button component={Link} to="/organizations">
        <ListItemIcon>
          <PeopleIcon />
        </ListItemIcon>
        <ListItemText primary="Organization"  />
      </ListItem>
      <ListItem button component={Link} to="/class">
        <ListItemIcon>
          <PeopleIcon />
        </ListItemIcon>
        <ListItemText primary="Class"  />
      </ListItem>
      <ListItem button component={Link} to="/students">
        <ListItemIcon>
          <PeopleIcon />
        </ListItemIcon>
        <ListItemText primary="Students"  />
      </ListItem>
      <ListItem button>
        <ListItemIcon>
          <BarChartIcon />
        </ListItemIcon>
        <ListItemText primary="Call Logs" />
      </ListItem>
    </div>
  );
  
  export default withRouter(mainListItems);
  