@Override
    public int hashCode() {
        return Objects.hash(conditions, documentation);
    }
Invoke the {@link RuleValueVisitor} functions for this Rule.

@param visitor the visitor to be invoked.
@param <T>     the visitor return type.
@return the return value of the visitor.
smithy-rules-engine/src/main/java/software/amazon/smithy/rulesengine/language/syntax/rule/Rule.java