if ( !function_exists( 'cocoon_template_part' ) ):
function cocoon_template_part($slug, $name = null, $args = []) {
  ob_start();
  get_template_part($slug, $name, $args) ;
  $content = ob_get_clean();

  // 読み込み前発火
  if (has_filter("cocoon_part_before__{$slug}")) {
    do_action("cocoon_part_before__{$slug}");
  }

  // 書き換え
  if (has_filter("cocoon_part__{$slug}")) {
    $content = apply_filters("cocoon_part__{$slug}" ,$content, $args);
  }
  echo $content;

  // 読み込み後発火
  if (has_filter("cocoon_part_after__{$slug}")) {
    do_action("cocoon_part_after__{$slug}");
  }
}
endif;