def get_next_assets(self, n=None):
return self._get_next_n(n)<EOL>
Gets the next set of ``Assets`` in this list which must be less
        than or equal to the return from ``available()``.

        arg:    n (cardinal): the number of ``Asset`` elements requested
                which must be less than or equal to ``available()``
        return: (osid.repository.Asset) - an array of ``Asset``
                elements.The length of the array is less than or equal
                to the number specified.
        raise:  IllegalState - no more elements available in this list
        raise:  OperationFailed - unable to complete request
        *compliance: mandatory -- This method must be implemented.*