"Content-Encoding": "gzip",
	}

	// Add form data
	maps.Copy(formData, addFormData)

	// Create the multipart form.
	var buf bytes.Buffer
	w := multipart.NewWriter(&buf)

	// Set the normal formData
	for k, v := range formData {
		w.WriteField(k, v)
	}
	// Set the File formData but don't if we want send an incomplete multipart request
	if !corruptedMultipart {

        single_not_embedded_field
        and lenient_issubclass(first_field.field_info.annotation, BaseModel)
        and isinstance(received_body, FormData)
    ):
        fields_to_extract = get_cached_model_fields(first_field.field_info.annotation)

    if isinstance(received_body, FormData):
        body_to_process = await _extract_form_body(fields_to_extract, received_body)

    if single_not_embedded_field:

	// }

	// Fill the login form with our test creds:
	// fmt.Printf("login form url: %s\n", lastReq.URL.String())
	formData := url.Values{}
	formData.Set("login", username)
	formData.Set("password", password)
	req, err = http.NewRequestWithContext(ctx, http.MethodPost, lastReq.URL.String(), strings.NewReader(formData.Encode()))
	if err != nil {
		return "", fmt.Errorf("new request err (/login): %v", err)
	}