Add 'InputMessageContent' and it's 4 types

src/Entities/InputContactMessageContent.php

+<?php
+/**
+ * This file is part of the TelegramBot package.
+ *
+ * (c) Avtandil Kikabidze aka LONGMAN <akalongman@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Longman\TelegramBot\Entities;
+
+use Longman\TelegramBot\Exception\TelegramException;
+
+class InputContactMessageContent extends InputMessageContent
+{
+    protected $phone_number;
+    protected $first_name;
+    protected $last_name;
+
+    public function __construct(array $data)
+    {
+        //parent::__construct($data);
+
+        $this->phone_number isset($data['phone_number']) ? $data['phone_number'] : null;
+        if (empty($this->phone_number)) {
+            throw new TelegramException('phone_number is empty!');
+        }
+
+        $this->first_name isset($data['first_name']) ? $data['first_name'] : null;
+        if (empty($this->first_name)) {
+            throw new TelegramException('first_name is empty!');
+        }
+
+        $this->last_name isset($data['last_name']) ? $data['last_name'] : null;
+    }
+}

src/Entities/InputLocationMessageContent.php

+<?php
+/**
+ * This file is part of the TelegramBot package.
+ *
+ * (c) Avtandil Kikabidze aka LONGMAN <akalongman@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Longman\TelegramBot\Entities;
+
+use Longman\TelegramBot\Exception\TelegramException;
+
+class InputLocationMessageContent extends InputMessageContent
+{
+    protected $latitude;
+    protected $longitude;
+
+    public function __construct(array $data)
+    {
+        //parent::__construct($data);
+
+        $this->latitude isset($data['latitude']) ? $data['latitude'] : null;
+        if (empty($this->latitude)) {
+            throw new TelegramException('latitude is empty!');
+        }
+
+        $this->longitude isset($data['longitude']) ? $data['longitude'] : null;
+        if (empty($this->longitude)) {
+            throw new TelegramException('longitude is empty!');
+        }
+    }
+}

src/Entities/InputMessageContent.php

+<?php
+/**
+ * This file is part of the TelegramBot package.
+ *
+ * (c) Avtandil Kikabidze aka LONGMAN <akalongman@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Longman\TelegramBot\Entities;
+
+class InputMessageContent extends Entity
+{
+
+}

src/Entities/InputTextMessageContent.php

+<?php
+/**
+ * This file is part of the TelegramBot package.
+ *
+ * (c) Avtandil Kikabidze aka LONGMAN <akalongman@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Longman\TelegramBot\Entities;
+
+use Longman\TelegramBot\Exception\TelegramException;
+
+class InputTextMessageContent extends InputMessageContent
+{
+    protected $message_text;
+    protected $parse_mode;
+    protected $disable_web_page_preview;
+
+    public function __construct(array $data)
+    {
+        //parent::__construct($data);
+
+        $this->message_text isset($data['message_text']) ? $data['message_text'] : null;
+        if (empty($this->message_text)) {
+            throw new TelegramException('message_text is empty!');
+        }
+
+        $this->parse_mode isset($data['parse_mode']) ? $data['parse_mode'] : null;
+        $this->disable_web_page_preview isset($data['disable_web_page_preview']) ? $data['disable_web_page_preview'] : null;
+    }
+}

src/Entities/InputVenueMessageContent.php

+<?php
+/**
+ * This file is part of the TelegramBot package.
+ *
+ * (c) Avtandil Kikabidze aka LONGMAN <akalongman@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Longman\TelegramBot\Entities;
+
+use Longman\TelegramBot\Exception\TelegramException;
+
+class InputVenueMessageContent extends InputMessageContent
+{
+    protected $latitude;
+    protected $longitude;
+    protected $title;
+    protected $address;
+    protected $foursquare_id;
+
+    public function __construct(array $data)
+    {
+        //parent::__construct($data);
+
+        $this->latitude isset($data['latitude']) ? $data['latitude'] : null;
+        if (empty($this->latitude)) {
+            throw new TelegramException('latitude is empty!');
+        }
+
+        $this->longitude isset($data['longitude']) ? $data['longitude'] : null;
+        if (empty($this->longitude)) {
+            throw new TelegramException('longitude is empty!');
+        }
+
+        $this->title isset($data['title']) ? $data['title'] : null;
+        if (empty($this->title)) {
+            throw new TelegramException('title is empty!');
+        }
+
+        $this->address isset($data['address']) ? $data['address'] : null;
+        if (empty($this->address)) {
+            throw new TelegramException('address is empty!');
+        }
+
+        $this->foursquare_id isset($data['foursquare_id']) ? $data['foursquare_id'] : null;
+    }
+}