Mailgun\RequestBuilder::getMultipartStreamBuilder PHP Method

getMultipartStreamBuilder() private method

private getMultipartStreamBuilder ( ) : Http\Message\MultipartStream\MultipartStreamBuilder
return Http\Message\MultipartStream\MultipartStreamBuilder
    private function getMultipartStreamBuilder()
    {
        if ($this->multipartStreamBuilder === null) {
            $this->multipartStreamBuilder = new MultipartStreamBuilder();
        }
        return $this->multipartStreamBuilder;
    }