UploadUrlPayload

Upload URL response.

Field	Type	Description
`fileUploadUrl`	`String`	Signed upload URL.
`filePath`	`String`	Full file path
`uploadId`	`String`	Tracked upload ID.
`requiredHeaders`	`JSON`	Headers required on the PUT request, such as Content-Type and x-goog-content-length-range.
`error`	`String`	Error message if generation failed