code: public static function parse(string $word): array
      {
          $word = ltrim(rtrim(trim($word), '}'), '{');
  
          /* Having Default Value */
          if ($separatorPosition = strpos($word, '=')) {
              $key = substr($word, 0, $separatorPosition);
              $defaultValue = substr($word, $separatorPosition + 1);
              return [$key, $defaultValue];
          }
  
          return [$word, null];
      }
docs: Parse an argument or option to its key and value
  
  @param string $word
  @return array