add llamaindex

packages/components/nodes/responsesynthesizer/TreeSummarize/TreeSummarize.ts

@@ -0,0 +1,56 @@
+import { INode, INodeData, INodeOutputsValue, INodeParams } from '../../../src/Interface'
+import { ResponseSynthesizerClass } from '../base'
+
+class TreeSummarize_LlamaIndex implements INode {
+    label: string
+    name: string
+    version: number
+    description: string
+    type: string
+    icon: string
+    category: string
+    baseClasses: string[]
+    tags: string[]
+    inputs: INodeParams[]
+    outputs: INodeOutputsValue[]
+
+    constructor() {
+        this.label = 'TreeSummarize'
+        this.name = 'treeSummarizeLlamaIndex'
+        this.version = 1.0
+        this.type = 'TreeSummarize'
+        this.icon = 'treesummarize.svg'
+        this.category = 'Response Synthesizer'
+        this.description =
+            'Given a set of text chunks and the query, recursively construct a tree and return the root node as the response. Good for summarization purposes.'
+        this.baseClasses = [this.type, 'ResponseSynthesizer']
+        this.tags = ['LlamaIndex']
+        this.inputs = [
+            {
+                label: 'Prompt',
+                name: 'prompt',
+                type: 'string',
+                rows: 4,
+                default: `Context information from multiple sources is below.
+---------------------
+{context}
+---------------------
+Given the information from multiple sources and not prior knowledge, answer the query.
+Query: {query}
+Answer:`,
+                warning: `Prompt can contains no variables, or up to 2 variables. Variables must be {context} and {query}`,
+                optional: true
+            }
+        ]
+    }
+
+    async init(nodeData: INodeData): Promise<any> {
+        const prompt = nodeData.inputs?.prompt as string
+
+        const textQAPromptTemplate = ({ context = '', query = '' }) => prompt.replace('{context}', context).replace('{query}', query)
+
+        return new ResponseSynthesizerClass({ textQAPromptTemplate, type: 'TreeSummarize' })
+    }
+}
+
+module.exports = { nodeClass: TreeSummarize_LlamaIndex }