fixed the typings for the json response in the ollama json response

Author: ArnabChatterjee20k

src/Agents/Adapters/Ollama.php

@@ -70,22 +70,15 @@ public function embed(string $text): array
             $payload
         );
         $body = $response->getBody();
-        /**
-         * @var array{
-         *   error?: string,
-         *   embeddings?: array<int, array<int, float>>,
-         *   total_duration?: int,
-         *   load_duration?: int
-         * }|null $json
-         */
+
         $json = is_string($body) ? json_decode($body, true) : null;
 
         if (isset($json['error'])) {
             throw new \Exception($json['error'], $response->getStatusCode());
         }
 
         return [
-            'embedding' => $json['embeddings'][0],
+            'embedding' => $json['embeddings'] ? $json['embeddings'][0] : [],
             'total_duration' => $json['total_duration'] ?? null,
             'load_duration' => $json['load_duration'] ?? null,
         ];
@@ -173,7 +166,7 @@ public function getName(): string
      */
     protected function formatErrorMessage($json): string
     {
-        if (!is_array($json)) {
+        if (! is_array($json)) {
             return '(unknown_error) Unknown error';
         }