Added abstract methods for required methods

src/Entities/Traits/AccessTokenTrait.php

@@ -13,6 +13,8 @@ use Lcobucci\JWT\Builder;
 use Lcobucci\JWT\Signer\Key;
 use Lcobucci\JWT\Signer\Rsa\Sha256;
 use League\OAuth2\Server\CryptKey;
+use League\OAuth2\Server\Entities\ClientEntityInterface;
+use League\OAuth2\Server\Entities\ScopeEntityInterface;
 
 trait AccessTokenTrait
 {
@@ -36,4 +38,24 @@ trait AccessTokenTrait
             ->sign(new Sha256(), new Key($privateKey->getKeyPath(), $privateKey->getPassPhrase()))
             ->getToken();
     }
+
+    /**
+     * @return ClientEntityInterface
+     */
+    abstract public function getClient();
+
+    /**
+     * @return \DateTime
+     */
+    abstract public function getExpiryDateTime();
+
+    /**
+     * @return string|int
+     */
+    abstract public function getUserIdentifier();
+
+    /**
+     * @return ScopeEntityInterface[]
+     */
+    abstract public function getScopes();
 }