DRIVERS-2768: Restore missing "type" option docs for search indexes

source/index-management/index-management.md

@@ -902,19 +902,39 @@ await collection.dropSearchIndex('my-test-index');
 
 ```typescript
 interface SearchIndexModel {
- // The definition for this index.
+ /**
+ * Document describing the index to create.
+ *
+ * The definition syntax depends on whether you create a standard search index
+ * or a vector search index.
+ *
+ * @see https://www.mongodb.com/docs/manual/reference/command/createSearchIndexes/
+ */
  definition: Document;
 
- // The name for this index, if present.
- name: Optional<string>;
-
- // The type for this index, if present. Can be either "search" or "vectorSearch". 
- type: Optional<string>;
+ /**
+ * Contains the options for the index.
+ */
+ options: SearchIndexOptions;
 }
 
 interface SearchIndexOptions {
- // The name for this index, if present.
+ /**
+ * Name of the search index to create.
+ *
+ * The server will use "default" if this option is not specified.
+ */
  name: Optional<string>;
+
+ /**
+ * Type of search index to create. Defaults to "search" if not provided.
+ *
+ * Specify "search" for a standard search index or "vectorSearch" for a vector
+ * search index.
+ *
+ * The server will use "search" if this option is not specified.
+ */
+ type: Optional<string>;
 }
 
 /**
@@ -1125,6 +1145,10 @@ from mistakenly specifying this option, drivers manually verify it is only sent
 
 #### Changelog
 
+- 2024-09-05: Moved options in SearchIndexModel to SearchIndexOptions for consistency with IndexModel and IndexOptions.
+
+- 2024-03-06: Added `type` option to SearchIndexOptions.
+
 - 2024-03-05: Migrated from reStructuredText to Markdown.
 
 - 2023-11-08: Clarify that `readConcern` and `writeConcern` must not be applied to search index management commands.