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24 lines
859 B
TypeScript
24 lines
859 B
TypeScript
import type { IExecuteFunctions } from 'n8n-workflow';
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import { BaseChatModel } from 'langchain/chat_models/base';
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import { BaseChatModel as BaseChatModelCore } from '@langchain/core/language_models/chat_models';
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export function getMetadataFiltersValues(
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ctx: IExecuteFunctions,
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itemIndex: number,
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): Record<string, never> | undefined {
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const metadata = ctx.getNodeParameter('options.metadata.metadataValues', itemIndex, []) as Array<{
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name: string;
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value: string;
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}>;
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if (metadata.length > 0) {
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return metadata.reduce((acc, { name, value }) => ({ ...acc, [name]: value }), {});
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}
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return undefined;
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}
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// TODO: Remove this function once langchain package is updated to 0.1.x
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export function isChatInstance(model: any): model is BaseChatModel | BaseChatModelCore {
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return model instanceof BaseChatModel || model instanceof BaseChatModelCore;
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}
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