AddFileToUpdate
Add a file to an update.
Input
| Name | Type | Required | Description |
| UpdateId | String | True | The update to add the file to. |
| FileName | String | False | FileName is required when Content is specified. |
| LocalPath | String | False | The file to upload. |
Result Set Columns
| Name | Type | Description |
| AssetId | String | The unique identifier of the uploaded file. |