add ability to change default behaiveor

src/Telegram.php

@@ -23,7 +23,7 @@ class Telegram
     /** @var string Telegram Bot API Base URI */
     protected string $apiBaseUri;
 
-    public function __construct(string $token = null, HttpClient $httpClient = null, string $apiBaseUri = null)
+    public function __construct(?string $token = null, ?HttpClient $httpClient = null, ?string $apiBaseUri = null)
     {
         $this->token = $token;
         $this->http = $httpClient ?? new HttpClient();

src/TelegramFile.php

@@ -48,7 +48,7 @@ public function content(string $content): self
      * @param  resource|StreamInterface|string  $file
      * @return $this
      */
-    public function file(mixed $file, string $type, string $filename = null): self
+    public function file(mixed $file, string $type, ?string $filename = null): self
     {
         $this->type = $type;
 
@@ -102,7 +102,7 @@ public function audio(string $file): self
      *
      * @return $this
      */
-    public function document(string $file, string $filename = null): self
+    public function document(string $file, ?string $filename = null): self
     {
         return $this->file($file, 'document', $filename);
     }

src/TelegramMessage.php

@@ -33,7 +33,7 @@ public static function create(string $content = ''): self
      *
      * @return $this
      */
-    public function content(string $content, int $limit = null): self
+    public function content(string $content, ?int $limit = null): self
     {
         $this->payload['text'] = $content;
 

src/Traits/HasSharedLogic.php

@@ -3,6 +3,7 @@
 namespace NotificationChannels\Telegram\Traits;
 
 use Illuminate\Support\Traits\Conditionable;
+use InvalidArgumentException;
 
 /**
  * Trait HasSharedLogic.
@@ -50,6 +51,34 @@ public function keyboardMarkup(array $markup): self
         return $this;
     }
 
+    /**
+     * unsets parse mode of the message.
+     *
+     * @return static
+     */
+    public function normal()
+    {
+        unset($this->payload['parse_mode']);
+
+        return $this;
+    }
+
+    /**
+     * Sets parse mode of the message.
+     *
+     * @return static
+     */
+    public function parseMode(?string $mode = null)
+    {
+        if (isset($mode) and ! in_array($mode, $allowed = ['Markdown', 'HTML', 'MarkdownV2'])) {
+            throw new InvalidArgumentException("Invalid aggregate type [$mode], allowed types: [".implode(', ', $allowed).'].');
+        }
+
+        $this->payload['parse_mode'] = $mode;
+
+        return $this;
+    }
+
     /**
      * Add a normal keyboard button.
      *