feat: Support sticker message keywords (#305)

* feat: add keywords property

* test: add sticker message keywords case

* chore: add type hint

Co-authored-by: louis70109 <louis70109@gmail.com>

Author: louis70109

linebot/models/messages.py

@@ -189,13 +189,14 @@ class StickerMessage(Message):
     """
 
     def __init__(self, id=None, package_id=None, sticker_id=None,
-                 sticker_resource_type=None, **kwargs):
+                 sticker_resource_type=None, keywords=None, **kwargs):
         """__init__ method.
 
         :param str id: Message ID
         :param str package_id: Package ID
         :param str sticker_id: Sticker ID
         :param str sticker_resource_type: Sticker resource type
+        :param list[str] keywords: List of up to 15 keywords describing the sticker
         :param kwargs:
         """
         super(StickerMessage, self).__init__(id=id, **kwargs)
@@ -204,6 +205,7 @@ def __init__(self, id=None, package_id=None, sticker_id=None,
         self.package_id = package_id
         self.sticker_id = sticker_id
         self.sticker_resource_type = sticker_resource_type
+        self.keywords = keywords
 
 
 class FileMessage(Message):

tests/test_webhook.py

@@ -168,6 +168,8 @@ def test_parse(self):
         self.assertEqual(events[5].message.package_id, '1')
         self.assertEqual(events[5].message.sticker_id, '1')
         self.assertEqual(events[5].message.sticker_resource_type, 'STATIC')
+        self.assertEqual(events[5].message.keywords[0], 'Love You')
+        self.assertEqual(events[5].message.keywords[1], 'Love')
 
         # FollowEvent, SourceUser
         self.assertIsInstance(events[6], FollowEvent)

tests/text/webhook.json

@@ -106,7 +106,8 @@
         "type": "sticker",
         "packageId": "1",
         "stickerId": "1",
-        "stickerResourceType": "STATIC"
+        "stickerResourceType": "STATIC",
+        "keywords": ["Love You", "Love"]
       }
     },
     {