Fix style issue

Author: Erdem Köse

src/ChatSession.php

@@ -37,7 +37,7 @@ public function sendMessage(PartInterface ...$parts): GenerateContentResponse
  ->withGenerationConfig($config)
  ->generateContentWithContents($this->history);
 
- if(!empty($response->candidates)) {
+ if (!empty($response->candidates)) {
  $parts = $response->candidates[0]->content->parts;
  $this->history[] = new Content($parts, Role::Model);
  }
@@ -58,7 +58,7 @@ public function sendMessageStream(
 
  $parts = [];
  $partsCollectorCallback = function (GenerateContentResponse $response) use ($callback, &$parts) {
- if(!empty($response->candidates)) {
+ if (!empty($response->candidates)) {
  array_push($parts, ...$response->parts());
  }
 

tests/Unit/ClientTest.php

@@ -23,7 +23,7 @@
 
 class ClientTest extends TestCase
 {
- public function testConstructor()
+ public function testConstructor(): void
  {
  $client = new Client(
  'test-api-key',
@@ -32,7 +32,7 @@ public function testConstructor()
  self::assertInstanceOf(Client::class, $client);
  }
 
- public function testWithBaseUrl()
+ public function testWithBaseUrl(): void
  {
  $client = new Client(
  'test-api-key',
@@ -42,7 +42,7 @@ public function testWithBaseUrl()
  self::assertInstanceOf(Client::class, $client);
  }
 
- public function testGeminiPro()
+ public function testGeminiPro(): void
  {
  $client = new Client(
  'test-api-key',
@@ -53,7 +53,7 @@ public function testGeminiPro()
  self::assertEquals(ModelName::GEMINI_PRO, $model->modelName);
  }
 
- public function testGeminiProWithEnum()
+ public function testGeminiProWithEnum(): void
  {
  $client = new Client(
  'test-api-key',
@@ -75,7 +75,7 @@ public function testGenerativeModel()
  self::assertEquals(ModelName::EMBEDDING_001, $model->modelName);
  }
 
- public function testGenerateContent()
+ public function testGenerateContent(): void
  {
  $httpRequest = new Request(
  'POST',
@@ -152,7 +152,7 @@ public function testGenerateContent()
  self::assertEquals('This is the Gemini Pro response', $response->text());
  }
 
- public function testEmbedContent()
+ public function testEmbedContent(): void
  {
  $httpRequest = new Request(
  'POST',
@@ -207,7 +207,7 @@ public function testEmbedContent()
  self::assertEquals([0.041395925, -0.017692696], $response->embedding->values);
  }
 
- public function testCountTokens()
+ public function testCountTokens(): void
  {
  $httpRequest = new Request(
  'POST',
@@ -257,7 +257,7 @@ public function testCountTokens()
  self::assertEquals(10, $response->totalTokens);
  }
 
- public function testListModels()
+ public function testListModels(): void
  {
  $httpRequest = new Request(
  'GET',