feat: create bitmap and label list scalar index using python async api (#1529)

* Expose `bitmap` and `LabelList` scalar index type via Rust and Async
Python API
* Add documents

python/python/tests/test_index.py

@@ -1,10 +1,14 @@
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright The LanceDB Authors
+
 from datetime import timedelta
+import random
 
 import pyarrow as pa
 import pytest
 import pytest_asyncio
 from lancedb import AsyncConnection, AsyncTable, connect_async
-from lancedb.index import BTree, IvfPq
+from lancedb.index import BTree, IvfPq, Bitmap, LabelList
 
 
 @pytest_asyncio.fixture
@@ -25,8 +29,11 @@ NROWS = 256
 async def some_table(db_async):
     data = pa.Table.from_pydict(
         {
-            "id": list(range(256)),
+            "id": list(range(NROWS)),
             "vector": sample_fixed_size_list_array(NROWS, DIM),
+            "tags": [
+                [f"tag{random.randint(0, 8)}" for _ in range(2)] for _ in range(NROWS)
+            ],
         }
     )
     return await db_async.create_table(
@@ -53,6 +60,22 @@ async def test_create_scalar_index(some_table: AsyncTable):
     await some_table.create_index("id", config=BTree())
 
 
+@pytest.mark.asyncio
+async def test_create_bitmap_index(some_table: AsyncTable):
+    await some_table.create_index("id", config=Bitmap())
+    # TODO: Fix via https://github.com/lancedb/lance/issues/2039
+    # indices = await some_table.list_indices()
+    # assert str(indices) == '[Index(Bitmap, columns=["id"])]'
+
+
+@pytest.mark.asyncio
+async def test_create_label_list_index(some_table: AsyncTable):
+    await some_table.create_index("tags", config=LabelList())
+    # TODO: Fix via https://github.com/lancedb/lance/issues/2039
+    # indices = await some_table.list_indices()
+    # assert str(indices) == '[Index(LabelList, columns=["id"])]'
+
+
 @pytest.mark.asyncio
 async def test_create_vector_index(some_table: AsyncTable):
     # Can create