@abc.abstractmethod<EOL><INDENT>def set_created_date(self, created_date):<DEDENT>
pass<EOL>
Sets the created date.

        :param created_date: the new created date
        :type created_date: ``osid.calendaring.DateTime``
        :raise: ``InvalidArgument`` -- ``created_date`` is invalid
        :raise: ``NoAccess`` -- ``Metadata.isReadOnly()`` is ``true``
        :raise: ``NullArgument`` -- ``created_date`` is ``null``

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