docs: def get_authorizations_ids_by_vault(self, vault_ids):
          """Gets the list of ``Authorization Ids`` corresponding to a list of ``Vault`` objects.
  
          arg:    vault_ids (osid.id.IdList): list of vault ``Ids``
          return: (osid.id.IdList) - list of authorization ``Ids``
          raise:  NullArgument - ``vault_ids`` is ``null``
          raise:  OperationFailed - unable to complete request
          raise:  PermissionDenied - authorization failure
          *compliance: mandatory -- This method must be implemented.*
  
          """
          # Implemented from template for
          # osid.resource.ResourceBinSession.get_resource_ids_by_bin
          id_list = []
          for authorization in self.get_authorizations_by_vault(vault_ids):
              id_list.append(authorization.get_id())
          return IdList(id_list)