message: Update DocumentModificationOptions/DocumentModificationContext for 0.8.x
  Closes
diff: @@ -703,6 +703,11 @@ export interface DocumentModificationOptions {
  */
  index?: boolean;
  + /**
  + * An array of fields to retrieve when indexing the collection
  + */
  + indexFields?: string[];
  +
  /**
  * When performing a creation operation, keep the provided _id instead of clearing it.
  * @defaultValue `false`
  