Again fix more Psalm errors

Author: sveldhuisen

src/GrantType/PasswordGrantType.php

@@ -55,6 +55,7 @@ public function __construct(
      *
      * @throws TransportExceptionInterface
      */
+    #[\Override]
     public function getTokens(): Tokens
     {
         $parameters = [

src/GrantType/RefreshTokenGrantType.php

@@ -10,7 +10,7 @@
 /**
  * Implementation of the OAuth refresh token grant type.
  */
-class RefreshTokenGrantType implements GrantTypeInterface
+final class RefreshTokenGrantType implements GrantTypeInterface
 {
     use TokensExtractor;
 
@@ -50,6 +50,7 @@ public function __construct(
      *
      * @throws TransportExceptionInterface
      */
+    #[\Override]
     public function getTokens(): Tokens
     {
         $response = $this->client->request('POST', $this->tokenUrl, [

src/GrantType/Tokens.php

@@ -7,7 +7,7 @@
 /**
  * Value object for an access token and a refresh token.
  */
-class Tokens
+final class Tokens
 {
     private string $accessToken;
 

src/OAuthHttpClient.php

@@ -40,27 +40,37 @@ public function __construct(
         $this->cache = new MemoryTokensCache();
     }
 
+    /**
+     * @psalm-api
+     */
     public function setSigner(RequestSignerInterface $signer): self
     {
         $this->signer = $signer;
 
         return $this;
     }
 
+    /**
+     * @psalm-api
+     */
     public function setChecker(ResponseCheckerInterface $checker): self
     {
         $this->checker = $checker;
 
         return $this;
     }
 
+    /**
+     * @psalm-api
+     */
     public function setCache(TokensCacheInterface $cache): self
     {
         $this->cache = $cache;
 
         return $this;
     }
 
+    #[\Override]
     public function request(string $method, string $url, array $options = []): ResponseInterface
     {
         $grant = $this->grant;
@@ -84,11 +94,13 @@ public function request(string $method, string $url, array $options = []): Respo
         throw new RuntimeException();
     }
 
+    #[\Override]
     public function stream($responses, ?float $timeout = null): ResponseStreamInterface
     {
         return $this->client->stream($responses, $timeout);
     }
 
+    #[\Override]
     public function withOptions(array $options): static
     {
         return new self($this->client->withOptions($options), $this->grant);

src/RequestSigner/BearerHeaderRequestSigner.php

@@ -4,7 +4,7 @@
 
 namespace BenjaminFavre\OAuthHttpClient\RequestSigner;
 
-class BearerHeaderRequestSigner extends HeaderRequestSigner
+final class BearerHeaderRequestSigner extends HeaderRequestSigner
 {
     public function __construct()
     {

src/ResponseChecker/StatusCode401ResponseChecker.php

@@ -6,8 +6,9 @@
 
 use Symfony\Contracts\HttpClient\ResponseInterface;
 
-class StatusCode401ResponseChecker implements ResponseCheckerInterface
+final class StatusCode401ResponseChecker implements ResponseCheckerInterface
 {
+    #[\Override]
     public function hasAuthenticationFailed(ResponseInterface $response): bool
     {
         return $response->getStatusCode() === 401;

src/TokensCache/MemoryTokensCache.php

@@ -7,10 +7,11 @@
 use BenjaminFavre\OAuthHttpClient\GrantType\GrantTypeInterface;
 use BenjaminFavre\OAuthHttpClient\GrantType\Tokens;
 
-class MemoryTokensCache implements TokensCacheInterface
+final class MemoryTokensCache implements TokensCacheInterface
 {
     private ?Tokens $tokens = null;
 
+    #[\Override]
     public function get(GrantTypeInterface $grant): Tokens
     {
         if ($this->tokens === null) {
@@ -20,6 +21,7 @@ public function get(GrantTypeInterface $grant): Tokens
         return $this->tokens;
     }
 
+    #[\Override]
     public function clear(): void
     {
         $this->tokens = null;

src/TokensCache/SymfonyTokensCacheAdapter.php

@@ -9,7 +9,10 @@
 use RuntimeException;
 use Symfony\Contracts\Cache\CacheInterface;
 
-class SymfonyTokensCacheAdapter implements TokensCacheInterface
+/**
+ * @psalm-api
+ */
+final class SymfonyTokensCacheAdapter implements TokensCacheInterface
 {
     private CacheInterface $cache;
 
@@ -21,6 +24,7 @@ public function __construct(CacheInterface $cache, string $cacheKey)
         $this->cacheKey = $cacheKey;
     }
 
+    #[\Override]
     public function get(GrantTypeInterface $grant): Tokens
     {
         $tokens = $this->cache->get($this->cacheKey, function () use ($grant) {
@@ -34,6 +38,7 @@ public function get(GrantTypeInterface $grant): Tokens
         return $tokens;
     }
 
+    #[\Override]
     public function clear(): void
     {
         $this->cache->delete($this->cacheKey);