am 43d44621: am 8d53821d: am 46a1b362: am 657d7b8c: am 4f4d243d: am 64461bf4: doc tags for api guides and delete a useless file

* commit '43d446218dca5f1d7dd4c523782b5e5b0b72cd02':
  doc tags for api guides and delete a useless file