The category of graded bialgebras with a distinguished basis
EXAMPLES:
sage: C = GradedBialgebrasWithBasis(QQ); C
Join of Category of ...
sage: sorted(C.super_categories(), key=str)
[Category of bialgebras over Rational Field,
Category of coalgebras with basis over Rational Field,
Category of graded algebras with basis over Rational Field]
TESTS:
sage: TestSuite(C).run()