code: def assign_authorization_to_vault(self, authorization_id, vault_id):
          
          # Implemented from template for
          # osid.resource.ResourceBinAssignmentSession.assign_resource_to_bin
          mgr = self._get_provider_manager('AUTHORIZATION', local=True)
          lookup_session = mgr.get_vault_lookup_session(proxy=self._proxy)
          lookup_session.get_vault(vault_id)  # to raise NotFound
          self._assign_object_to_catalog(authorization_id, vault_id)
docs: Adds an existing ``Authorization`` to a ``Vault``.
  
          arg:    authorization_id (osid.id.Id): the ``Id`` of the
                  ``Authorization``
          arg:    vault_id (osid.id.Id): the ``Id`` of the ``Vault``
          raise:  AlreadyExists - ``authorization_id`` is already assigned
                  to ``vault_id``
          raise:  NotFound - ``authorization_id`` or ``vault_id`` not
                  found
          raise:  NullArgument - ``authorization_id`` or ``vault_id`` is
                  ``null``
          raise:  OperationFailed - unable to complete request
          raise:  PermissionDenied - authorization failure
          *compliance: mandatory -- This method must be implemented.*