added ChatInviteLink class

aiogram/types/chat_invite_link.py

@@ -0,0 +1,20 @@
+from datetime import datetime
+
+from . import base
+from . import fields
+from .user import User
+
+
+class ChatInviteLink(base.TelegramObject):
+    """
+    Represents an invite link for a chat.
+
+    https://core.telegram.org/bots/api#chatinvitelink
+    """
+
+    invite_link: base.String = fields.Field()
+    creator: User = fields.Field(base=User)
+    is_primary: base.Boolean = fields.Field()
+    is_revoked: base.Boolean = fields.Field()
+    expire_date: datetime = fields.DateTimeField()
+    member_limit: base.Integer = fields.Field()