94 lines
3.0 KiB
TypeScript
94 lines
3.0 KiB
TypeScript
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 { getModels, MODEL_TYPE } from '../../../src/modelLoader'
|
|
|
|
class Cohere_LLMs implements INode {
|
|
label: string
|
|
name: string
|
|
version: number
|
|
type: string
|
|
icon: string
|
|
category: string
|
|
description: string
|
|
baseClasses: string[]
|
|
credential: INodeParams
|
|
inputs: INodeParams[]
|
|
|
|
constructor() {
|
|
this.label = 'Cohere'
|
|
this.name = 'cohere'
|
|
this.version = 3.0
|
|
this.type = 'Cohere'
|
|
this.icon = 'Cohere.svg'
|
|
this.category = 'LLMs'
|
|
this.description = 'Wrapper around Cohere large language models'
|
|
this.baseClasses = [this.type, ...getBaseClasses(Cohere)]
|
|
this.credential = {
|
|
label: 'Connect Credential',
|
|
name: 'credential',
|
|
type: 'credential',
|
|
credentialNames: ['cohereApi']
|
|
}
|
|
this.inputs = [
|
|
{
|
|
label: 'Cache',
|
|
name: 'cache',
|
|
type: 'BaseCache',
|
|
optional: true
|
|
},
|
|
{
|
|
label: 'Model Name',
|
|
name: 'modelName',
|
|
type: 'asyncOptions',
|
|
loadMethod: 'listModels',
|
|
default: 'command'
|
|
},
|
|
{
|
|
label: 'Temperature',
|
|
name: 'temperature',
|
|
type: 'number',
|
|
step: 0.1,
|
|
default: 0.7,
|
|
optional: true
|
|
},
|
|
{
|
|
label: 'Max Tokens',
|
|
name: 'maxTokens',
|
|
type: 'number',
|
|
step: 1,
|
|
optional: true
|
|
}
|
|
]
|
|
}
|
|
|
|
//@ts-ignore
|
|
loadMethods = {
|
|
async listModels(): Promise<INodeOptionsValue[]> {
|
|
return await getModels(MODEL_TYPE.LLM, 'cohere')
|
|
}
|
|
}
|
|
async init(nodeData: INodeData, _: string, options: ICommonObject): Promise<any> {
|
|
const temperature = nodeData.inputs?.temperature as string
|
|
const modelName = nodeData.inputs?.modelName as string
|
|
const maxTokens = nodeData.inputs?.maxTokens as string
|
|
const cache = nodeData.inputs?.cache as BaseCache
|
|
const credentialData = await getCredentialData(nodeData.credential ?? '', options)
|
|
const cohereApiKey = getCredentialParam('cohereApiKey', credentialData, nodeData)
|
|
|
|
const obj: CohereInput = {
|
|
apiKey: cohereApiKey
|
|
}
|
|
|
|
if (maxTokens) obj.maxTokens = parseInt(maxTokens, 10)
|
|
if (modelName) obj.model = modelName
|
|
if (temperature) obj.temperature = parseFloat(temperature)
|
|
if (cache) obj.cache = cache
|
|
const model = new Cohere(obj)
|
|
return model
|
|
}
|
|
}
|
|
|
|
module.exports = { nodeClass: Cohere_LLMs }
|