code: def get_authorization_ids_by_vault(self, vault_id):
          
          # Implemented from template for
          # osid.resource.ResourceBinSession.get_resource_ids_by_bin
          id_list = []
          for authorization in self.get_authorizations_by_vault(vault_id):
              id_list.append(authorization.get_id())
          return IdList(id_list)
docs: Gets the list of ``Authorization``  ``Ids`` associated with a ``Vault``.
  
          arg:    vault_id (osid.id.Id): ``Id`` of a ``Vault``
          return: (osid.id.IdList) - list of related authorization ``Ids``
          raise:  NotFound - ``vault_id`` is not found
          raise:  NullArgument - ``vault_id`` is ``null``
          raise:  OperationFailed - unable to complete request
          raise:  PermissionDenied - authorization failure
          *compliance: mandatory -- This method must be implemented.*