private function prepareData()
    {
        $data = [];
        foreach (get_object_vars($this) as $property => $value) {
            if (in_array($property, ['apiHost', 'debug'])) {
                continue;
            }

            if ($property == 'format') {
                $data[$value] = '';
            } elseif (is_bool($value) && $value) {
                $data[$property] = '';
            } elseif (!is_null($value) && !is_bool($value)) {
                if (is_array($value)) {
                    foreach ($value as $key => $val) {
                        $value[$key] = $val;
                    }
                } else {
                    $value = $value;
                }

                $data[$property] = $value;
            }
        }

        if (empty($data) && $this->debug) {
            throw new \Exception('Query have not data');
        }

        $data = http_build_query($data);

        return $data;
    }