text: import React from 'react'
  import Tooltip from '@material-ui/core/Tooltip';
  import IconButton from '@material-ui/core/IconButton';
  
  export default ({ children, onClick, tip, btnClassName, tipClassName }) => (
      <Tooltip title={tip} className={tipClassName}>
          <IconButton onClick={onClick} className={btnClassName} >
              {children}
          </IconButton>
      </Tooltip>
  );