criteria/common/src/org/immutables/criteria/constraints/ComparableCriteria.java
public R isAtMost(V upperInclusive) {
    return create(e -> Expressions.call(Operators.LESS_THAN_OR_EQUAL, e, Expressions.literal(upperInclusive)));
  }
public R isAtMost(V upperInclusive) {
    return create(e -> Expressions.call(Operators.LESS_THAN_OR_EQUAL, e, Expressions.literal(upperInclusive)));
  }
Checks that attribute is less than or equal to {@code upperInclusive}.