Add Bot API 5.2 support

src/Types/InlineQuery.php

@@ -8,9 +8,10 @@ class InlineQuery extends Type {
         'location'  => Location::class
     ];
 
-    public $id;
-    public $from;
-    public $location;
-    public $query;
-    public $offset;
+    public string $id;
+    public User $from;
+    public string $query;
+    public string $offset;
+    public ?Location $location = null;
+    public ?string $chat_type = null;
 }

src/Types/Message.php

@@ -36,6 +36,7 @@ class Message extends Type {
         'poll'                              => Poll::class,
         'message_auto_delete_timer_changed' => MessageAutoDeleteTimerChanged::class,
         'proximity_alert_triggered'         => ProximityAlertTriggered::class,
+        'voice_chat_scheduled'              => VoiceChatScheduled::class,
         'voice_chat_started'                => VoiceChatStarted::class,
         'voice_chat_ended'                  => VoiceChatEnded::class,
         'voice_chat_participants_invited'   => VoiceChatParticipantsInvited::class,
@@ -93,6 +94,7 @@ class Message extends Type {
     public ?string $connected_website = null;
     public ?PassportData $passport_data = null;
     public ?ProximityAlertTriggered $proximity_alert_triggered = null;
+    public ?VoiceChatScheduled $voice_chat_scheduled = null;
     public ?VoiceChatStarted $voice_chat_started = null;
     public ?VoiceChatEnded $voice_chat_ended = null;
     public ?VoiceChatParticipantsInvited $voice_chat_participants_invited = null;

src/Types/VoiceChatScheduled.php

@@ -0,0 +1,7 @@
+<?php namespace Telegram\Bot\Types;
+
+use Telegram\Bot\Type;
+
+class VoiceChatScheduled extends Type {
+    public int $start_date;
+}