*/
public File updateFileMetadata(File file, Map<String, String> params)
throws ClientServicesException {
String accessType = AccessType.AUTHENTICATED.getText();
if (file==null) {
throw new ClientServicesException(null, Messages.Invalid_File);
}
String payload = new FileSerializer(file).generateFileUpdatePayload();
String requestUri = FileUrls.MYUSERLIBRARY_DOCUMENT_ENTRY.format(this,
FileUrlParts.accessType.get(accessType), FileUrlParts.fileId.get(file.getFileId()));
Response response = updateData(requestUri, params, new ClientService.ContentString(