106 lines
3.3 KiB
TypeScript
106 lines
3.3 KiB
TypeScript
import { INode, INodeData, INodeParams } from '../../../src/Interface'
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import { getBaseClasses } from '../../../src/utils'
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import { GoogleVertexAI, GoogleVertexAITextInput } from 'langchain/llms/googlevertexai'
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class GoogleVertexAI_LLMs implements INode {
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label: string
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name: string
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version: number
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type: string
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icon: string
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category: string
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description: string
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baseClasses: string[]
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credential: INodeParams
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inputs: INodeParams[]
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constructor() {
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this.label = 'GoogleVertexAI'
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this.name = 'googlevertexai'
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this.version = 1.0
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this.type = 'GoogleVertexAI'
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this.icon = 'vertexai.svg'
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this.category = 'LLMs'
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this.description = 'Wrapper around GoogleVertexAI large language models'
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this.baseClasses = [this.type, ...getBaseClasses(GoogleVertexAI)]
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this.inputs = [
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{
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label: 'Model Name',
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name: 'modelName',
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type: 'options',
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options: [
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{
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label: 'text-bison',
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name: 'text-bison'
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},
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{
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label: 'code-bison',
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name: 'code-bison'
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},
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{
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label: 'code-gecko',
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name: 'code-gecko'
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},
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{
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label: 'text-bison@001',
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name: 'text-bison@001'
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},
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{
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label: 'code-bison@001',
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name: 'code-bison@001'
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},
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{
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label: 'code-gecko@001',
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name: 'code-gecko@001'
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}
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],
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default: 'text-bison'
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},
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{
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label: 'Temperature',
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name: 'temperature',
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type: 'number',
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step: 0.1,
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default: 0.7,
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optional: true
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},
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{
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label: 'max Output Tokens',
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name: 'maxOutputTokens',
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type: 'number',
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step: 1,
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optional: true,
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additionalParams: true
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},
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{
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label: 'Top Probability',
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name: 'topP',
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type: 'number',
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step: 0.1,
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optional: true,
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additionalParams: true
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}
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]
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}
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async init(nodeData: INodeData, _: string): Promise<any> {
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const temperature = nodeData.inputs?.temperature as string
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const model = nodeData.inputs?.modelName as string
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const maxOutputTokens = nodeData.inputs?.maxTokens as string
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const topP = nodeData.inputs?.topP as string
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const obj: Partial<GoogleVertexAITextInput> = {
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temperature: parseFloat(temperature),
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model
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}
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if (maxOutputTokens) obj.maxOutputTokens = parseInt(maxOutputTokens, 10)
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if (topP) obj.topP = parseFloat(topP)
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const llm_model = new GoogleVertexAI(obj)
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return llm_model
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}
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}
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module.exports = { nodeClass: GoogleVertexAI_LLMs }
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