bugfix

packages/components/nodes/vectorstores/Vectara/Vectara.ts

@@ -1,12 +1,5 @@
 import { flatten } from 'lodash'
-import {
-    VectaraStore,
-    VectaraLibArgs,
-    VectaraFilter,
-    VectaraContextConfig,
-    VectaraFile,
-    VectaraMMRConfig
-} from 'langchain/vectorstores/vectara'
+import { VectaraStore, VectaraLibArgs, VectaraFilter, VectaraContextConfig, VectaraFile, MMRConfig } from 'langchain/vectorstores/vectara'
 import { Document } from 'langchain/document'
 import { Embeddings } from 'langchain/embeddings/base'
 import { ICommonObject, INode, INodeData, INodeOutputsValue, INodeParams } from '../../../src/Interface'
@@ -237,8 +230,9 @@ class Vectara_VectorStores implements INode {
         if (sentencesBefore) vectaraContextConfig.sentencesBefore = sentencesBefore
         if (sentencesAfter) vectaraContextConfig.sentencesAfter = sentencesAfter
         vectaraFilter.contextConfig = vectaraContextConfig
-        const mmrConfig: VectaraMMRConfig = {}
-        mmrConfig.mmrK = mmrK
+        const mmrConfig: MMRConfig = {}
+        mmrConfig.enabled = mmrDiversityBias > 0
+        mmrConfig.mmrTopK = mmrK
         mmrConfig.diversityBias = mmrDiversityBias
         vectaraFilter.mmrConfig = mmrConfig