/**
  * @param array $body
  * @return string
  */
 public function format($body)
 {
     array_walk_recursive($body, function (&$value) {
         if ($value instanceof CURLFile) {
             $value = file_get_contents($value->getFilename());
         }
     });
     return $this->arrayDumper->toString($body);
 }
 /**
  * @param string $body
  * @return string
  */
 public function format($body)
 {
     $data = [];
     parse_str($body, $data);
     return $this->arrayDumper->toString($data);
 }