Signing Link Expiration does not accept null

[matthewhutchings]

as per documentation:

In your request specify: "auth_method" - signer authentication menthod; can be "password", "email", "mfa", "social", "biometric", "other", "none" "link_expiration" - in how many minutes the link expires, ranges from 15 to 45 minutes or null.
https://docs.signnow.com/docs/signnow/aaa2c15d291c3-generate-a-link-for-embedded-invite

However:

   public function setSigningLinkExpiration(
        string $documentUid,
        string $fieldInviteUniqueId,
        int $expiration,
        ?AuthMethodInterface $authMethod = null
    ) {

int $expiration should allow null

[darnel868]

Did this problem fix?

[JiSoft]

Fixed at
v2.2.3
v1.5.3