How to use the react-addons-pure-render-mixin.shouldComponentUpdate.bind function in react-addons-pure-render-mixin

constructor(props: Props): void {
    super(props);
    this.shouldComponentUpdate = shouldComponentUpdate.bind(this);
    this.state = {
      view: true,
      // HACK: We'll need to handle props and state change better here
      source: this.props.cell.get('source'),
    };
    this.openEditor = this.openEditor.bind(this);
    this.editorKeyDown = this.editorKeyDown.bind(this);
    this.renderedKeyDown = this.renderedKeyDown.bind(this);
  }

constructor(...args) {
    super(...args);
    this.shouldComponentUpdate = shouldComponentUpdate.bind(this);
  }
}