fix: adds missing imports

Author: JasonTheAdams

src/Files/DTO/File.php

@@ -4,6 +4,8 @@
 
 namespace WordPress\AiClient\Files\DTO;
 
+use InvalidArgumentException;
+use RuntimeException;
 use WordPress\AiClient\Common\AbstractDataValueObject;
 use WordPress\AiClient\Files\Enums\FileTypeEnum;
 use WordPress\AiClient\Files\ValueObjects\MimeType;
@@ -406,7 +408,9 @@ public function toArray(): array
         } elseif (!$this->fileType->isRemote() && $this->base64Data !== null) {
             $data['base64Data'] = $this->base64Data;
         } else {
-            throw new RuntimeException('File requires either url or base64Data. This should not be a possible condition.');
+            throw new RuntimeException(
+                'File requires either url or base64Data. This should not be a possible condition.'
+            );
         }
 
         return $data;

src/Messages/DTO/MessagePart.php

@@ -239,7 +239,10 @@ public function toArray(): array
         } elseif ($this->functionResponse !== null) {
             $data['functionResponse'] = $this->functionResponse->toArray();
         } else {
-            throw new RuntimeException('MessagePart requires one of: text, file, functionCall, or functionResponse. This should not be a possible condition.');
+            throw new RuntimeException(
+                'MessagePart requires one of: text, file, functionCall, or functionResponse. '
+                . 'This should not be a possible condition.'
+            );
         }
 
         return $data;