# UploadFileSystem Object

* `type` String - `fileSystem`.
* `filsSystemURL` String - FileSystem url to read data for upload.
* `offset` Integer - Defaults to `0`.
* `length` Integer - Number of bytes to read from `offset`.
  Defaults to `0`.
* `modificationTime` Double - Last Modification time in
  number of seconds since the UNIX epoch.
