def METHOD_NAME(self):
    """
    Return a string representation of ``self``.
    EXAMPLES::
        sage: AlgebrasWithBasis(QQ).Filtered().example()
        An example of a filtered algebra with basis:
         the universal enveloping algebra of
         Lie algebra of RR^3 with cross product over Rational Field
    """
    return "An example of a filtered algebra with basis: the universal enveloping algebra of Lie algebra of RR^3 with cross product over {}".format(self.base_ring())