docs: public synchronized boolean isValidateAgainstStandardSchematron() {
  		if (!ourPhPresentOnClasspath) {
  			// No need to ask since we dont have Ph-Schematron. Also Class.forname will complain
  			// about missing ph-schematron import.
  			return false;
  		}
  		Class<? extends IValidatorModule> cls = SchematronProvider.getSchematronValidatorClass();
  		return haveValidatorOfType(cls);
  	}