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refactor: Update Langchain to 0.1.41 & add support for Claude 3 (#8825)

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Signed-off-by: Oleg Ivaniv <me@olegivaniv.com>
Co-authored-by: Michael Kret <michael.k@radency.com>
This commit is contained in:
oleg
2024-03-07 11:36:36 +01:00
committed by GitHub
parent c6f6254c0e
commit 0f7ae3f50a
76 changed files with 908 additions and 451 deletions
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2
packages/@n8n/nodes-langchain/utils/N8nBinaryLoader.ts
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@@ -4,7 +4,7 @@ import type { IExecuteFunctions, INodeExecutionData } from 'n8n-workflow';
import { NodeOperationError, BINARY_ENCODING } from 'n8n-workflow';
import type { TextSplitter } from 'langchain/text_splitter';
import type { Document } from 'langchain/document';
import type { Document } from '@langchain/core/documents';
import { CSVLoader } from 'langchain/document_loaders/fs/csv';
import { DocxLoader } from 'langchain/document_loaders/fs/docx';
import { JSONLoader } from 'langchain/document_loaders/fs/json';

8
packages/@n8n/nodes-langchain/utils/N8nJsonLoader.ts
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@@ -1,11 +1,7 @@
import {
type IExecuteFunctions,
type INodeExecutionData,
NodeOperationError,
} from 'n8n-workflow';
import { type IExecuteFunctions, type INodeExecutionData, NodeOperationError } from 'n8n-workflow';
import type { TextSplitter } from 'langchain/text_splitter';
import type { Document } from 'langchain/document';
import type { Document } from '@langchain/core/documents';
import { JSONLoader } from 'langchain/document_loaders/fs/json';
import { TextLoader } from 'langchain/document_loaders/fs/text';
import { getMetadataFiltersValues } from './helpers';

42
packages/@n8n/nodes-langchain/utils/helpers.ts
View File

@@ -1,10 +1,9 @@
import { NodeConnectionType, NodeOperationError, jsonStringify } from 'n8n-workflow';
import type { EventNamesAiNodesType, IDataObject, IExecuteFunctions } from 'n8n-workflow';
import { BaseChatModel } from 'langchain/chat_models/base';
import { BaseChatModel as BaseChatModelCore } from '@langchain/core/language_models/chat_models';
import { BaseChatModel } from '@langchain/core/language_models/chat_models';
import type { BaseOutputParser } from '@langchain/core/output_parsers';
import type { BaseMessage } from 'langchain/schema';
import { DynamicTool, type Tool } from 'langchain/tools';
import type { BaseMessage } from '@langchain/core/messages';
import { DynamicTool, type Tool } from '@langchain/core/tools';
export function getMetadataFiltersValues(
ctx: IExecuteFunctions,
@@ -23,8 +22,8 @@ export function getMetadataFiltersValues(
// TODO: Remove this function once langchain package is updated to 0.1.x
// eslint-disable-next-line @typescript-eslint/no-duplicate-type-constituents
export function isChatInstance(model: any): model is BaseChatModel | BaseChatModelCore {
return model instanceof BaseChatModel || model instanceof BaseChatModelCore;
export function isChatInstance(model: any): model is BaseChatModel {
return model instanceof BaseChatModel;
}
export async function getOptionalOutputParsers(
@@ -128,24 +127,25 @@ export function serializeChatHistory(chatHistory: BaseMessage[]): string {
}
export const getConnectedTools = async (ctx: IExecuteFunctions, enforceUniqueNames: boolean) => {
const connectedTools = ((await ctx.getInputConnectionData(NodeConnectionType.AiTool, 0)) as Tool[]) || [];
const connectedTools =
((await ctx.getInputConnectionData(NodeConnectionType.AiTool, 0)) as Tool[]) || [];
if (!enforceUniqueNames) return connectedTools;
if (!enforceUniqueNames) return connectedTools;
const seenNames = new Set<string>();
const seenNames = new Set<string>();
for (const tool of connectedTools) {
if (!(tool instanceof DynamicTool)) continue;
for (const tool of connectedTools) {
if (!(tool instanceof DynamicTool)) continue;
const { name } = tool;
if (seenNames.has(name)) {
throw new NodeOperationError(
ctx.getNode(),
`You have multiple tools with the same name: '${name}', please rename them to avoid conflicts`,
);
}
seenNames.add(name);
}
const { name } = tool;
if (seenNames.has(name)) {
throw new NodeOperationError(
ctx.getNode(),
`You have multiple tools with the same name: '${name}', please rename them to avoid conflicts`,
);
}
seenNames.add(name);
}
return connectedTools;
return connectedTools;
};

37
packages/@n8n/nodes-langchain/utils/logWrapper.ts
View File

@@ -1,25 +1,29 @@
import { NodeOperationError, NodeConnectionType } from 'n8n-workflow';
import type { ConnectionTypes, IExecuteFunctions, INodeExecutionData } from 'n8n-workflow';
import { Tool } from 'langchain/tools';
import type { ChatResult, InputValues, BaseMessage } from 'langchain/schema';
import { BaseChatMessageHistory } from 'langchain/schema';
import type { BaseChatModel } from 'langchain/chat_models/base';
import type { CallbackManagerForLLMRun } from 'langchain/callbacks';
import { Tool } from '@langchain/core/tools';
import type { BaseMessage } from '@langchain/core/messages';
import type { InputValues, MemoryVariables, OutputValues } from '@langchain/core/memory';
import type { ChatResult } from '@langchain/core/outputs';
import { BaseChatMessageHistory } from '@langchain/core/chat_history';
import type { BaseChatModel } from '@langchain/core/language_models/chat_models';
import type {
CallbackManagerForLLMRun,
BaseCallbackConfig,
Callbacks,
} from '@langchain/core/callbacks/manager';
import { Embeddings } from 'langchain/embeddings/base';
import { VectorStore } from 'langchain/vectorstores/base';
import type { Document } from 'langchain/document';
import { Embeddings } from '@langchain/core/embeddings';
import { VectorStore } from '@langchain/core/vectorstores';
import type { Document } from '@langchain/core/documents';
import { TextSplitter } from 'langchain/text_splitter';
import type { BaseDocumentLoader } from 'langchain/document_loaders/base';
import type { BaseCallbackConfig, Callbacks } from 'langchain/dist/callbacks/manager';
import { BaseLLM } from 'langchain/llms/base';
import { BaseChatMemory } from 'langchain/memory';
import type { MemoryVariables, OutputValues } from 'langchain/dist/memory/base';
import { BaseRetriever } from 'langchain/schema/retriever';
import type { FormatInstructionsOptions } from 'langchain/schema/output_parser';
import { BaseOutputParser, OutputParserException } from 'langchain/schema/output_parser';
import { BaseLLM } from '@langchain/core/language_models/llms';
import { BaseChatMemory } from '@langchain/community/memory/chat_memory';
import { BaseRetriever } from '@langchain/core/retrievers';
import type { FormatInstructionsOptions } from '@langchain/core/output_parsers';
import { BaseOutputParser, OutputParserException } from '@langchain/core/output_parsers';
import { isObject } from 'lodash';
import type { BaseDocumentLoader } from 'langchain/dist/document_loaders/base';
import { N8nJsonLoader } from './N8nJsonLoader';
import { N8nBinaryLoader } from './N8nBinaryLoader';
import { isChatInstance, logAiEvent } from './helpers';
@@ -524,6 +528,7 @@ export function logWrapper(
}
}
// eslint-disable-next-line @typescript-eslint/no-unsafe-return
return (target as any)[prop];
},
});