def get_composition(self):
<EOL>if not bool(self._my_map['<STR_LIT>']):<EOL><INDENT>raise errors.IllegalState('<STR_LIT>')<EOL><DEDENT>mgr = self._get_provider_manager('<STR_LIT>')<EOL>if not mgr.supports_composition_lookup():<EOL><INDENT>raise errors.OperationFailed('<STR_LIT>')<EOL><DEDENT>lookup_session = mgr.get_composition_lookup_session(proxy=getattr(self, "<STR_LIT>", None))<EOL>lookup_session.use_federated_repository_view()<EOL>return lookup_session.get_composition(self.get_composition_id())<EOL>
Gets the Composition corresponding to this asset.

        return: (osid.repository.Composition) - the composiiton
        raise:  IllegalState - ``is_composition()`` is ``false``
        raise:  OperationFailed - unable to complete request
        *compliance: mandatory -- This method must be implemented.*