curl -i -X PUT "https://api.box.com/2.0/files/12345/watermark" \
     -H "authorization: Bearer <ACCESS_TOKEN>" \
     -H "content-type: application/json" \
     -d '{
       "watermark": {
         "imprint": "default"
       }
     }'

await client.fileWatermarks.updateFileWatermark(file.id, {
  watermark: new UpdateFileWatermarkRequestBodyWatermarkField({
    imprint: 'default' as UpdateFileWatermarkRequestBodyWatermarkImprintField,
  }),
} satisfies UpdateFileWatermarkRequestBody);

client.file_watermarks.update_file_watermark(
    file.id,
    UpdateFileWatermarkWatermark(
        imprint=UpdateFileWatermarkWatermarkImprintField.DEFAULT
    ),
)

await client.FileWatermarks.UpdateFileWatermarkAsync(fileId: file.Id, requestBody: new UpdateFileWatermarkRequestBody(watermark: new UpdateFileWatermarkRequestBodyWatermarkField(imprint: UpdateFileWatermarkRequestBodyWatermarkImprintField.Default)));

BoxFile file = new BoxFile(api, id);
file.applyWatermark();

watermark = client.file(file_id='12345').apply_watermark()
print(f'Watermark created at {watermark.created_at} and modified at {watermark.modified_at}')

BoxWatermark watermark = await client.FilesManager.ApplyWatermarkAsync("11111");

client.files.applyWatermark('11111')
	.then(watermark => {
		/* watermark -> {
			watermark: 
			{ created_at: '2016-10-31T15:33:33-07:00',
				modified_at: '2016-10-31T15:33:33-07:00' } }
		*/
	});