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‎pymongo/collection.py‎
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‎pymongo/collection.py‎
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‎pymongo/operations.py‎
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‎pymongo/operations.py‎
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‎test/test_index_management.py‎
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‎test/test_index_management.py‎
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@@ -39,6 +39,8 @@ PyMongo 4.7 brings a number of improvements including:
 - Added the :attr:`pymongo.monitoring.ConnectionCheckedOutEvent.duration`,
   :attr:`pymongo.monitoring.ConnectionCheckOutFailedEvent.duration`, and
   :attr:`pymongo.monitoring.ConnectionReadyEvent.duration` properties.
+- Added the ``type`` and ``kwargs`` arguments to :class:`~pymongo.operations.SearchIndexModel` to enable
+  creating vector search indexes in MongoDB Atlas.
 
 
 Unavoidable breaking changes
 
@@ -2410,7 +2410,7 @@ def create_search_index(
         .. versionadded:: 4.5
         """
         if not isinstance(model, SearchIndexModel):
-            model = SearchIndexModel(model["definition"], model.get("name"), model.get("type"))
+            model = SearchIndexModel(**model)
         return self.create_search_indexes([model], session, comment, **kwargs)[0]
 
     def create_search_indexes(
 
@@ -593,23 +593,28 @@ def __init__(
         definition: Mapping[str, Any],
         name: Optional[str] = None,
         type: Optional[str] = "search",
+        **kwargs: Any,
     ) -> None:
         """Create a Search Index instance.
 
         For use with :meth:`~pymongo.collection.Collection.create_search_index` and :meth:`~pymongo.collection.Collection.create_search_indexes`.
 
-        :param definition: - The definition for this index.
-        :param name: - The name for this index, if present.
-
-        .. versionadded:: 4.5
+        :param definition: The definition for this index.
+        :param name: The name for this index, if present.
+        :param type: The type for this index which defaults to "search". Alternative values include "vectorSearch".
+        :param kwargs: Keyword arguments supplying any additional options.
 
         .. note:: Search indexes require a MongoDB server version 7.0+ Atlas cluster.
+        .. versionadded:: 4.5
+        .. versionchanged:: 4.7
+           Added the type and kwargs arguments.
         """
+        self.__document: dict[str, Any] = {}
         if name is not None:
-            self.__document = dict(name=name, definition=definition)
-        else:
-            self.__document = dict(definition=definition)
-        self.__document["type"] = type  # type: ignore[assignment]
+            self.__document["name"] = name
+        self.__document["definition"] = definition
+        self.__document["type"] = type
+        self.__document.update(kwargs)
 
     @property
     def document(self) -> Mapping[str, Any]:
 
@@ -25,6 +25,7 @@
 
 from test import IntegrationTest, unittest
 from test.unified_format import generate_test_classes
+from test.utils import AllowListEventListener
 
 from pymongo import MongoClient
 from pymongo.errors import OperationFailure
@@ -39,7 +40,8 @@ class TestCreateSearchIndex(IntegrationTest):
     def test_inputs(self):
         if not os.environ.get("TEST_INDEX_MANAGEMENT"):
             raise unittest.SkipTest("Skipping index management tests")
-        client = MongoClient()
+        listener = AllowListEventListener("createSearchIndexes")
+        client = MongoClient(event_listeners=[listener])
         self.addCleanup(client.close)
         coll = client.test.test
         coll.drop()
@@ -55,6 +57,11 @@ def test_inputs(self):
             with self.assertRaises(OperationFailure):
                 coll.create_search_index(model_kwargs)
 
+        listener.reset()
+        with self.assertRaises(OperationFailure):
+            coll.create_search_index({"definition": definition, "arbitraryOption": 1})
+        self.assertIn("arbitraryOption", listener.events[0].command["indexes"][0])
+
 
 class TestSearchIndexProse(unittest.TestCase):
     @classmethod