Type clean up

Author: loevgaard

src/GrantType/PasswordGrantType.php

@@ -39,8 +39,8 @@ public function __construct(
         string $tokenUrl,
         string $username,
         string $password,
-        ?string $clientId = null,
-        ?string $clientSecret = null,
+        string $clientId = null,
+        string $clientSecret = null,
     ) {
         $this->client = $client;
         $this->tokenUrl = $tokenUrl;

src/OAuthHttpClient.php

@@ -23,11 +23,11 @@ final class OAuthHttpClient implements HttpClientInterface
 
     private GrantTypeInterface $grant;
 
-    private RequestSignerInterface|BearerHeaderRequestSigner $signer;
+    private RequestSignerInterface $signer;
 
-    private ResponseCheckerInterface|StatusCode401ResponseChecker $checker;
+    private ResponseCheckerInterface $checker;
 
-    private TokensCacheInterface|MemoryTokensCache $cache;
+    private TokensCacheInterface $cache;
 
     public function __construct(
         HttpClientInterface $client,
@@ -91,6 +91,6 @@ public function stream($responses, float $timeout = null): ResponseStreamInterfa
 
     public function withOptions(array $options): static
     {
-        return new static($this->client->withOptions($options), $this->grant);
+        return new self($this->client->withOptions($options), $this->grant);
     }
 }