feat: add filter tags support for channels

Author: javierdfm

stream_chat/tests/test_filter_tags.py

@@ -0,0 +1,20 @@
+import pytest
+from typing import Dict, List
+
+from stream_chat.channel import Channel
+
+
+@pytest.mark.incremental
+class TestFilterTags:
+    def test_add_and_remove_filter_tags(self, channel: Channel):
+        # Add tags
+        add_resp = channel.add_filter_tags(["vip", "premium"])
+        assert "channel" in add_resp
+        assert set(add_resp["channel"].get("filter_tags", [])) >= {"vip", "premium"}
+
+        # Remove one tag
+        remove_resp = channel.remove_filter_tags(["premium"])
+        assert "channel" in remove_resp
+        remaining = remove_resp["channel"].get("filter_tags", [])
+        assert "premium" not in remaining
+        assert "vip" in remaining