def get_book(self):
if self._lookup_session is None:<EOL><INDENT>mgr = get_provider_manager('<STR_LIT>', runtime=self._runtime, proxy=self._proxy)<EOL>self._lookup_session = mgr.get_book_lookup_session(proxy=getattr(self, "<STR_LIT>", None))<EOL><DEDENT>return self._lookup_session.get_book(Id(self._my_map['<STR_LIT:id>']))<EOL>
Gets the ``Book`` at this node.

        return: (osid.commenting.Book) - the book represented by this
                node
        *compliance: mandatory -- This method must be implemented.*