title: Loopback email verification using REST(where is the required verifyOptions configured)
body: <p>In loopback api explorer (localhost:3000/explorer) there is an endpoint {POST /users/{id}/verify} which I assume could be used to send verification email. In the description it is stated that </p>
  
  <blockquote>
    <p>"Trigger user's identity verification with configured verifyOptions"</p>
  </blockquote>
  
  <p>I very much like to know where/how this verifyOptions is configured.
  Thanks in advance</p>