57 lines
1.7 KiB
TypeScript
57 lines
1.7 KiB
TypeScript
import { INode, INodeData, INodeParams } from '../../../src/Interface'
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import { getBaseClasses, getInputVariables } from '../../../src/utils'
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class PromptTemplate_Prompts implements INode {
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label: string
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name: string
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description: string
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type: string
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icon: string
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category: string
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baseClasses: string[]
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inputs: INodeParams[]
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constructor() {
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this.label = 'Prompt Template'
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this.name = 'promptTemplate'
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this.type = 'PromptTemplate'
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this.icon = 'prompt.svg'
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this.category = 'Prompts'
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this.description = 'Schema to represent a basic prompt for an LLM. Template can only contains 1 literal string {}'
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this.inputs = [
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{
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label: 'Template',
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name: 'template',
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type: 'string',
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rows: 5,
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default: 'What is a good name for a company that makes {product}?',
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placeholder: 'What is a good name for a company that makes {product}?'
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}
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]
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}
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async getBaseClasses(): Promise<string[]> {
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const { PromptTemplate } = await import('langchain/prompts')
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return getBaseClasses(PromptTemplate)
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}
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async init(nodeData: INodeData): Promise<any> {
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const { PromptTemplate } = await import('langchain/prompts')
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const template = nodeData.inputs?.template as string
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const inputVariables = getInputVariables(template)
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try {
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const prompt = new PromptTemplate({
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template,
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inputVariables: inputVariables
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})
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return prompt
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} catch (e) {
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throw new Error(e)
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}
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}
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}
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module.exports = { nodeClass: PromptTemplate_Prompts }
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