Feature/seq agents (#2798)

* update build functions

* sequential agents

* update langchain to 0.2, added sequential agent nodes

* add marketplace templates

* update howto wordings

* Merge branch 'main' into feature/Seq-Agents

# Conflicts:
#	pnpm-lock.yaml

* update deprecated functions and add new sequential nodes

* add marketplace templates

* update marketplace templates, add structured output to llm node

* add multi agents template

* update llm node with bindmodels

* update cypress version

* update templates sticky note wordings

* update tool node to include human in loop action

* update structured outputs error from models

* update cohere package to resolve google genai pipeThrough bug

* update mistral package version, added message reconstruction before invoke seq agent

* add HITL to agent

* update state messages restructuring

* update load and split methods for s3 directory

packages/components/nodes/llms/Cohere/Cohere.ts

@@ -1,7 +1,7 @@
 import { BaseCache } from '@langchain/core/caches'
+import { Cohere, CohereInput } from '@langchain/cohere'
 import { ICommonObject, INode, INodeData, INodeOptionsValue, INodeParams } from '../../../src/Interface'
 import { getBaseClasses, getCredentialData, getCredentialParam } from '../../../src/utils'
-import { Cohere, CohereInput } from './core'
 import { getModels, MODEL_TYPE } from '../../../src/modelLoader'
 
 class Cohere_LLMs implements INode {

packages/components/nodes/llms/Cohere/core.ts

@@ -1,78 +0,0 @@
-import { LLM, BaseLLMParams } from '@langchain/core/language_models/llms'
-
-export interface CohereInput extends BaseLLMParams {
-    /** Sampling temperature to use */
-    temperature?: number
-
-    /**
-     * Maximum number of tokens to generate in the completion.
-     */
-    maxTokens?: number
-
-    /** Model to use */
-    model?: string
-
-    apiKey?: string
-}
-
-export class Cohere extends LLM implements CohereInput {
-    temperature = 0
-
-    maxTokens = 250
-
-    model: string
-
-    apiKey: string
-
-    constructor(fields?: CohereInput) {
-        super(fields ?? {})
-
-        const apiKey = fields?.apiKey ?? undefined
-
-        if (!apiKey) {
-            throw new Error('Please set the COHERE_API_KEY environment variable or pass it to the constructor as the apiKey field.')
-        }
-
-        this.apiKey = apiKey
-        this.maxTokens = fields?.maxTokens ?? this.maxTokens
-        this.temperature = fields?.temperature ?? this.temperature
-        this.model = fields?.model ?? this.model
-    }
-
-    _llmType() {
-        return 'cohere'
-    }
-
-    /** @ignore */
-    async _call(prompt: string, options: this['ParsedCallOptions']): Promise<string> {
-        const { cohere } = await Cohere.imports()
-
-        cohere.init(this.apiKey)
-
-        // Hit the `generate` endpoint on the `large` model
-        const generateResponse = await this.caller.callWithOptions({ signal: options.signal }, cohere.generate.bind(cohere), {
-            prompt,
-            model: this.model,
-            max_tokens: this.maxTokens,
-            temperature: this.temperature,
-            end_sequences: options.stop
-        })
-        try {
-            return generateResponse.body.generations[0].text
-        } catch {
-            throw new Error('Could not parse response.')
-        }
-    }
-
-    /** @ignore */
-    static async imports(): Promise<{
-        cohere: typeof import('cohere-ai')
-    }> {
-        try {
-            const { default: cohere } = await import('cohere-ai')
-            return { cohere }
-        } catch (e) {
-            throw new Error('Please install cohere-ai as a dependency with, e.g. `pnpm install cohere-ai`')
-        }
-    }
-}