Coverage for z.s.checker.InterfaceChecker.
Coverage for z.s.checker.MultiChecker.
Coverage for z.s.checker.selectChecker (C and Python versions).
Coverage for z.s.checker.getCheckerForInstancesOf.
Coverage for z.s.checker.defineChecker.
Coverage for z.s.checker.undefineChecker.
Coverage for z.s.checker.undefineChecker (testrunner).
Coverage for z.s.checker.CombinedChecker.