whole_func_string: function (el) {
          return el.id ? el.id : el.parentElement ? findId(el.parentElement) : null;
      }
func_code_string: function (el) {
          return el.id ? el.id : el.parentElement ? findId(el.parentElement) : null;
      }
func_documentation_string: Find the ID of the first parent element.