@abc.abstractmethod<EOL><INDENT>def reassign_assessment_taken_to_billing(self, assessment_taken_id, from_bank_id, to_bank_id):<DEDENT>
pass<EOL>
Moves an ``AssessmentTaken`` from one ``Bank`` to another.

        Mappings to other ``Banks`` are unaffected.

        :param assessment_taken_id: the ``Id`` of the ``AssessmentTaken``
        :type assessment_taken_id: ``osid.id.Id``
        :param from_bank_id: the ``Id`` of the current ``Bank``
        :type from_bank_id: ``osid.id.Id``
        :param to_bank_id: the ``Id`` of the destination ``Bank``
        :type to_bank_id: ``osid.id.Id``
        :raise: ``NotFound`` -- ``assessment_taken_id, from_bank_id,`` or ``to_bank_id`` not found or ``assessment_taken_id`` not mapped to ``from_bank_id``
        :raise: ``NullArgument`` -- ``assessment_taken_id, from_bank_id,`` or ``to_bank_id`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure

        *compliance: mandatory -- This method must be implemented.*