How to retrieve MongoDb collection validator rules? : <p>On MongoDB 3.4.4 I've created a collection with a validator, but now some inserts fail this rules and I can't understand why. </p>

<ol>
<li>Is there a way to output the rules of the validor? I'm afraid the rules applied are different from what I think they are...</li>
<li>Is there a way to improve the error message? "Document failed validation" in this scenario is quite useless.</li>
</ol>

<p>Thank you!</p>
