Tweak a Stringy method to have a more sensible return type

src/AnimeClient/API/APIRequestBuilder.php

@@ -14,8 +14,10 @@
 
 namespace Aviat\AnimeClient\API;
 
+// use Amp\Http\Client\Form;
 use Amp\Http\Client\Body\FormBody;
-
+use Amp\Http\Client\HttpClientBuilder;
+use Amp\Http\Client\HttpException;
 use Amp\Http\Client\Request;
 use Aviat\Ion\Json;
 
@@ -203,9 +205,7 @@ abstract class APIRequestBuilder
 	{
 		$this->buildUri();
 
-		if ($this->logger !== NULL)
-		{
-			$this->logger->debug('API Request', [
+		$this->logger?->debug('API Request', [
 			'request_url' => $this->request->getUri(),
 			'request_headers' => $this->request->getHeaders(),
 			'request_body' => wait(
@@ -214,7 +214,6 @@ abstract class APIRequestBuilder
 					->read()
 			),
 		]);
-		}
 
 		return $this->request;
 	}
@@ -222,12 +221,11 @@ abstract class APIRequestBuilder
 	/**
 	 * Get the data from the response of the passed request
 	 *
-	 * @throws Error
-	 * @throws Throwable
-	 * @throws TypeError
+	 * @param Request $request
 	 * @return mixed
+	 * @throws Throwable
 	 */
-	public function getResponseData(Request $request)
+	public function getResponseData(Request $request): mixed
 	{
 		$response = getResponse($request);
 

src/Ion/Type/Stringy.php

@@ -2122,7 +2122,7 @@ abstract class Stringy implements Countable, IteratorAggregate, ArrayAccess
 	 * Alias for mb_regex_encoding which default to a noop if the mbstring
 	 * module is not installed.
 	 */
-	protected function regexEncoding(): mixed
+	protected function regexEncoding(): string|bool|null
 	{
 		static $functionExists;
 
@@ -2137,6 +2137,8 @@ abstract class Stringy implements Countable, IteratorAggregate, ArrayAccess
 
 			return mb_regex_encoding(...$args);
 		}
+
+		return null;
 	}
 
 	protected function supportsEncoding(): bool|null