public static Boolean lte(Object left, Object right) {
        return or(lt(left, right),
                  eq(left, right)); // do not use Java || to avoid potential NPE due to FEEL 3vl.
    }
public static Boolean lte ( Object left , Object right ) { return or ( lt ( left , right ) , eq ( left , right ) ) ; }
FEEL spec Table 42 and derivations
Delegates to {@link EvalHelper} except evaluationcontext