Display Woocommerce Product Sub Category by Parent ID

add_shortcode( 'filter_product', 'filter_product_shortcode' );
function filter_product_shortcode( $atts ) {
 $atts = shortcode_atts(
   array(
    'taxid' => '34'
   ),
   $atts,
   'show_post'
  );
    ob_start();
     $args = array(
        'hierarchical' => 1,
        'show_option_none' => '',
        'hide_empty' => 1,
        'parent' => $atts['taxid'],
        'taxonomy' => 'product_cat'
     );
   $subcats = get_categories($args);
     echo '<ul class="wooc_filter_main"><li data-filter="*" class="filter-active">All</li>';
       foreach ($subcats as $sc) {
         $link = get_term_link( $sc->slug, $sc->taxonomy );
         $filter = strtolower($sc->name);
         $filter = str_replace(" ", "-", $filter);
         $filter = str_replace(array("'", "\"", "&quot;"), "", $filter);
         echo '<li data-filter="'.$filter.'">'.$sc->name.'</li>';
       }
     echo '</ul>';
    $myvariable = ob_get_clean();
    return $myvariable;
}