Utils.assert((str instanceof SIRFilter) && StatelessDuplicate.isFissable((SIRFilter)str), "Didn't get a filter or it wasn't fissable: " + str);
assert ((str instanceof SIRFilter) && StatelessDuplicate.isFissable((SIRFilter)str)) : "Didn't get a filter or it wasn't fissable: " + str;
    protected SIRStream doMyTransform(SIRStream str) {	// make sure we're fissable	Utils.assert((str instanceof SIRFilter) && StatelessDuplicate.isFissable((SIRFilter)str),		     "Didn't get a filter or it wasn't fissable: " + str);	//System.err.println("trying to split " + str + " " + reps + " ways.");	return StatelessDuplicate.doit((SIRFilter)str, reps);    }