code: private function isStructuralElement(Token $token)
      {
          static $skip = [
              T_PRIVATE,
              T_PROTECTED,
              T_PUBLIC,
              T_VAR,
              T_FUNCTION,
              T_ABSTRACT,
              T_CONST,
              T_NAMESPACE,
              T_REQUIRE,
              T_REQUIRE_ONCE,
              T_INCLUDE,
              T_INCLUDE_ONCE,
              T_FINAL,
              T_STATIC,
          ];
  
          return $token->isClassy() || $token->isGivenKind($skip);
      }
docs: @see https://github.com/phpDocumentor/fig-standards/blob/master/proposed/phpdoc.md#3-definitions
  
  @param Token $token
  
  @return bool