Authorize Custom Template

Hello,

As I was updating my child theme, I noticed a change that requires me to add extra values to hueman/functions/init-front.php at line 55 in order for me to use template files.

//helper
//@return bool
function hu_is_authorized_tmpl( $tmpl ) {
    $ct_map = apply_filters(
        'hu_content_map',
        array( 'tmpl/index-tmpl', 'tmpl/archive-tmpl', 'tmpl/page-tmpl', 'tmpl/single-tmpl', 'tmpl/single-review-tmpl', 'tmpl/search-tmpl', 'tmpl/404-tmpl', 'tmpl/author-tmpl' , 'tmpl/taxonomy-artist-tmpl', 'tmpl/archive-review-tmpl')
    );
    //Are we good after filtering ?
    if ( ! is_array( $ct_map ) || ! is_string( $tmpl ) )
      return;
    return in_array( $tmpl, $ct_map );
}

How can I add this change to my custom functions.php?
Thank you in advance!