text: import React from 'react';
  import List from '@material-ui/core/List';
  import ListItem from '@material-ui/core/ListItem';
  import ListItemIcon from '@material-ui/core/ListItemIcon';
  import ListItemText from '@material-ui/core/ListItemText';
  import PersonIcon from '@material-ui/icons/Person';
  import MessageIcon from '@material-ui/icons/Message';
  import MailIcon from '@material-ui/icons/Mail';
  import BuildIcon from '@material-ui/icons/Build';
  import Divider from '@material-ui/core/Divider';
  import {Link} from 'react-router-dom';
  
  export const MenuList = () => (
      <div>
          <Divider />
          <List>
              <Link to={'/admin/users'}>
                  <ListItem button key={'users'}>
                      <ListItemIcon><PersonIcon/></ListItemIcon>
                      <ListItemText>Users</ListItemText>
                  </ListItem>
              </Link>
              <Link to={'/admin/services'}>
                  <ListItem button key={'services'}>
                      <ListItemIcon><BuildIcon/></ListItemIcon>
                      <ListItemText>Services</ListItemText>
                  </ListItem>
              </Link>
              <Link to={'/admin/comments'}>
                  <ListItem button key={'comments'}>
                      <ListItemIcon><MessageIcon/></ListItemIcon>
                      <ListItemText>Comments</ListItemText>
                  </ListItem>
              </Link>
              <Link to={'/admin/mails'}>
                  <ListItem button key={'Mails'}>
                      <ListItemIcon><MailIcon/></ListItemIcon>
                      <ListItemText>Mails</ListItemText>
                  </ListItem>
              </Link>
          </List>
      </div>
  );