This works:

add_filter(\'template_include\', \'taxonomy_template\');
function taxonomy_template( $template ){

if( is_tax(\'accommodation-categories\')){
    $template = BASE_DIR .\'/templates/taxonomy-accommodation-categories.php\';
}  

return $template;

}

您可以在插件中创建页面模板，并添加以下过滤器，该过滤器将从插件中调用模板

add_filter( \'page_template\', \'wpa3396_page_template\' );
function wpa3396_page_template( $page_template )
{
    if ( is_page( \'my-custom-texonomy-slug\' ) ) {
        $page_template = dirname( __FILE__ ) . \'/template-neme.php\';
    }
    return $page_template;
}