code: private void visit_OP_APPEND() throws IOException {
      visitTxId();
      v.visitStringUTF8(EditsElement.PATH);
      
      // visit blocks
      visit_Blocks();
      
      // client name & machine
      v.visitStringUTF8(EditsElement.CLIENT_NAME);
      v.visitStringUTF8(EditsElement.CLIENT_MACHINE);
    }
docs: Visit OP_APPEND