Values_2.UploadUrlMetadataSourceFields required when uploading an attached file.
type nonrec t = {url : Values_1.MetadataUrl.t option;A pre-signed S3 URL that should be used for uploading the attached file.
*)urlExpiry : Values_0.ISO8601Datetime.t option;The expiration time of the URL in ISO timestamp. It's specified in ISO 8601 format: yyyy-MM-ddThh:mm:ss.SSSZ. For example, 2019-11-08T02:41:28.172Z.
*)headersToInclude : UrlMetadataSignedHeaders.t option;A map of headers that should be provided when uploading the attached file.
*)}val to_value :
t ->
[> `Structure of
(string
* [> `Map of
([> `String of UrlMetadataSignedHeadersKey.t ]
* [> `String of UrlMetadataSignedHeadersValue.t ])
list
| `String of Values_1.MetadataUrl.t ])
list ]