| Name | Type | Description | Notes |
|---|---|---|---|
| http_user_agent | string | Browser HTTPUserAgent String. This is the preferred way of identifying GIF image type to be generated. Required if <Root node>/ LabelSpecification/LabelImageFormat/Code = Gif. Default to Mozilla/4.5 if this field is missing or has invalid value. | [optional] |
| label_image_format | \AntibodiesOnline\UpsApi\Shipping\Model\LabelSpecificationLabelImageFormat | [optional] | |
| label_stock_size | \AntibodiesOnline\UpsApi\Shipping\Model\LabelSpecificationLabelStockSize | [optional] |