adding method during object.prototype.render but in another .js file

Question

Website - Wordpress

Plugin used - https://github.com/tomharrigan/transporter

Plugin Js file - https://github.com/tomharrigan/transporter/blob/master/transporter.js

Line No 121 of the JS file

/**
 * Renders the results from a successful response.
 */
Scroller.prototype.render = function( response ) {
    this.body.addClass( 'infinity-success' );

    // Check if we can wrap the html
    this.element.append( response.html );

    this.body.trigger( 'post-load', response );
    this.ready = true;
}

Basically i want to modify some of the my html before the data is appended

The only problem is i cannot modify the plugin Js file as it may get a update and all the changes will get lost

Is it possible to extend the plugin in another JS file?

/**
 * Renders the results from a successful response.
 */
Scroller.prototype.render = function( response ) {
    this.body.addClass( 'infinity-success' );

    // changed html
    this.element.find('.infinite-wrap .loading-message').html('Next post is loaded');

    // Check if we can wrap the html
    this.element.append( response.html );

    this.body.trigger( 'post-load', response );
    this.ready = true;
}