How to add vote fields to WordPress comments API

wp-ulike-pro.php

<?php

add_action( 'rest_api_init', function () {
    register_rest_field( 'comment', 'votes', array(
        'get_callback' => function( $comment_arr ) {
            return array(
                'like_amount'    => wp_ulike_get_comment_likes( $comment_arr['id'], 'like' ),
                'dislike_amount' => wp_ulike_get_comment_likes( $comment_arr['id'], 'dislike' ),
                'likers_list'    => wp_ulike_get_likers_list_per_post( 'ulike_comments', 'comment_id', $comment_arr['id'], NULL )
            );
        }
    ) );
} );