How to use the react-image-gallery.propTypes function in react-image-gallery

this.$link.removeClass( "easyzoom-zoomed" );
      },
      loadingNotice: I18n.t( "loading" )
    } );
  }

  slideToSlideIndex( ) {
    if (
      _.isInteger( this.props.slideIndex )
    ) {
      this.slideToIndex( this.props.slideIndex );
    }
  }
}

ZoomableImageGallery.propTypes = Object.assign( { }, ImageGallery.propTypes, {
  slideIndex: PropTypes.number
} );

export default ZoomableImageGallery;