code: public Transcripts getTranscripts(Jid userID) throws XMPPException, SmackException, InterruptedException {
          return transcriptManager.getTranscripts(workgroupJID, userID);
      }
docs: Returns the transcripts of a given user. The answer will contain the complete history of
  conversations that a user had.
  
  @param userID the id of the user to get his conversations.
  @return the transcripts of a given user.
  @throws XMPPException if an error occurs while getting the information.
  @throws SmackException
  @throws InterruptedException