}
	// Set the File formData but don't if we want send an incomplete multipart request
	if !corruptedMultipart {
		var writer io.Writer
		var err error
		if noFilename {
			writer, err = w.CreateFormField("file")
		} else {
			writer, err = w.CreateFormFile("file", "upload.txt")
		}
		if err != nil {
			// return nil, err
			return nil, err
		}
		writer.Write(objData)

pkg mime/multipart, method (*Reader) ReadForm(int64) (*Form, error)
pkg mime/multipart, method (*Writer) Boundary() string
pkg mime/multipart, method (*Writer) Close() error
pkg mime/multipart, method (*Writer) CreateFormField(string) (io.Writer, error)
pkg mime/multipart, method (*Writer) CreateFormFile(string, string) (io.Writer, error)
pkg mime/multipart, method (*Writer) CreatePart(textproto.MIMEHeader) (io.Writer, error)