The Amazon Resource Name (ARN) of the data source. For example: arn:aws:kendra:us-west-2:111122223333:index/335c3741-41df-46a6-b5d3-61f85b787884/data-source/b8cae438-6787-4091-8897-684a652bbb0a
arn:aws:kendra:us-west-2:111122223333:index/335c3741-41df-46a6-b5d3-61f85b787884/data-source/b8cae438-6787-4091-8897-684a652bbb0a