How to use the react-intl.IntlMixin function in react-intl

render(): any {
    return (
      <div title="{this.formatDate(this.props.date," style="{this.props.style}">
        
      </div>
    );
  }
}

RelativeDate.contextTypes = IntlMixin.contextTypes;
RelativeDate.childContextTypes = IntlMixin.childContextTypes;

Object.keys(IntlMixin).forEach(key =&gt; {
  if (['propTypes', 'contextTypes'].indexOf(key) &gt;= 0) {
    return;
  }
  RelativeDate.prototype[key] = IntlMixin[key];
});

module.exports = RelativeDate;