assertNotNull(element);
TypeBinding type = element.getType();
assertNotNull(type);
ParticleBinding particle = type.getParticle();
assertNotNull(particle);
TermBinding term = particle.getTerm();
assertNotNull(term);
term = assertSingleSequence(term);
assertTrue(term instanceof SequenceBinding);
term = assertSingleSequence(term);
assertTrue(term instanceof WildcardBinding);