-
Notifications
You must be signed in to change notification settings - Fork 126
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
feat: 🤖 integrate transformers model support
- Loading branch information
Showing
11 changed files
with
154 additions
and
27 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| import { ChatCompletionHandler, LanguageModel } from "./chat" | ||
| import { renderMessageContent } from "./chatrender" | ||
| import { MODEL_PROVIDER_TRANSFORMERS } from "./constants" | ||
| import type { | ||
| Chat, | ||
| Message, | ||
| TextGenerationOutput, | ||
| } from "@huggingface/transformers" | ||
| import { NotSupportedError } from "./error" | ||
| import { ChatCompletionMessageParam, ChatCompletionResponse } from "./chattypes" | ||
| import { deleteUndefinedValues, dotGenaiscriptPath, logVerbose } from "./util" | ||
| import { parseModelIdentifier } from "./models" | ||
| import prettyBytes from "pretty-bytes" | ||
|
|
||
| type GeneratorProgress = | ||
| | { | ||
| status: "initiate" | ||
| } | ||
| | { | ||
| status: "progress" | ||
| file: string | ||
| name: string | ||
| progress: number | ||
| loaded: number | ||
| total: number | ||
| } | ||
|
|
||
| function progressBar() { | ||
| const progress: Record<string, number> = {} | ||
| return (cb: GeneratorProgress) => { | ||
| if (cb.status !== "progress") return | ||
| const p = progress[cb.file] || 0 | ||
| const cp = Math.floor(cb.progress) | ||
| if (cp > p) { | ||
| progress[cb.file] = cp | ||
| logVerbose(`${cb.file}: ${cp}% (${prettyBytes(cb.loaded)})`) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| export const TransformersCompletion: ChatCompletionHandler = async ( | ||
| req, | ||
| cfg, | ||
| options, | ||
| trace | ||
| ) => { | ||
| const { messages, temperature, top_p, max_tokens } = req | ||
| const { partialCb, inner } = options | ||
| const { model } = parseModelIdentifier(req.model) | ||
| try { | ||
| trace.startDetails(`transformer`) | ||
| trace.itemValue("model", model) | ||
|
|
||
| const { pipeline } = await import("@huggingface/transformers") | ||
| // Create a text generation pipeline | ||
| const generator = await pipeline("text-generation", model, { | ||
| dtype: "q4", | ||
| cache_dir: dotGenaiscriptPath("transformers"), | ||
| progress_callback: progressBar(), | ||
| device: "cpu" | ||
| }) | ||
| logVerbose(`transformers model ${model} loaded`) | ||
| logVerbose(``) | ||
| const msgs: Chat = chatMessagesToTranformerMessages(messages) | ||
| trace.detailsFenced("messages", msgs, "yaml") | ||
| const output = (await generator( | ||
| msgs, | ||
| deleteUndefinedValues({ | ||
| max_new_tokens: max_tokens || 4000, | ||
| temperature, | ||
| top_p, | ||
| early_stopping: true, | ||
| }) | ||
| )) as TextGenerationOutput | ||
| const text = output | ||
| .map((msg) => (msg.generated_text.at(-1) as Message).content) | ||
| .join("\n") | ||
| trace.fence(text, "markdown") | ||
| partialCb?.({ | ||
| responseSoFar: text, | ||
| responseChunk: text, | ||
| tokensSoFar: 0, | ||
| inner, | ||
| }) | ||
| return { | ||
| text, | ||
| finishReason: "stop", | ||
| } satisfies ChatCompletionResponse | ||
| } catch (e) { | ||
| logVerbose(e) | ||
| throw e | ||
| } finally { | ||
| trace.endDetails() | ||
| } | ||
| } | ||
|
|
||
| // Define the Ollama model with its completion handler and model listing function | ||
| export const TransformersModel = Object.freeze<LanguageModel>({ | ||
| completer: TransformersCompletion, | ||
| id: MODEL_PROVIDER_TRANSFORMERS, | ||
| }) | ||
|
|
||
| function chatMessagesToTranformerMessages( | ||
| messages: ChatCompletionMessageParam[] | ||
| ): Chat { | ||
| return messages.map((msg) => { | ||
| switch (msg.role) { | ||
| case "function": | ||
| case "aici": | ||
| case "tool": | ||
| throw new NotSupportedError(`role ${msg.role} not supported`) | ||
| default: | ||
| return { | ||
| role: msg.role, | ||
| content: renderMessageContent(msg), | ||
| } satisfies Message | ||
| } | ||
| }) | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| script({ | ||
| model: "transformers:onnx-community/Qwen2.5-0.5B-Instruct", | ||
| }) | ||
| $`Write a poem with 2 paragraphs.` |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters