typescript react-redux connect

class ClassBase extends React.Component<any, any>{
    componentWillMount = function (): any {
        const {topicList, dispatch} = this.props;
        dispatch(fetchTopics());
    };

    render() {
        return (
            <div></div>
        );
    }
}
const mapStateToProps = (state: any, ownProps: any): any => ({
    
});
export const TopicList = connect(mapStateToProps)(ClassBase);