@utilities.arguments_not_none<EOL><INDENT>def get_assignable_objective_bank_ids(self, objective_bank_id):<DEDENT>
<EOL>mgr = self._get_provider_manager('<STR_LIT>', local=True)<EOL>lookup_session = mgr.get_objective_bank_lookup_session(proxy=self._proxy)<EOL>objective_banks = lookup_session.get_objective_banks()<EOL>id_list = []<EOL>for objective_bank in objective_banks:<EOL><INDENT>id_list.append(objective_bank.get_id())<EOL><DEDENT>return IdList(id_list)<EOL>
Gets a list of objective banks including and under the given objective bank node in which any objective can be assigned.

        arg:    objective_bank_id (osid.id.Id): the ``Id`` of the
                ``ObjectiveBank``
        return: (osid.id.IdList) - list of assignable objective bank
                ``Ids``
        raise:  NullArgument - ``objective_bank_id`` is ``null``
        raise:  OperationFailed - unable to complete request
        *compliance: mandatory -- This method must be implemented.*