pokutuna.com

Checked other resources I added a very descriptive title to this issue. I searched the LangChain.js documentation with the integrated search. I used the GitHub search to find a similar question and didn't find it. I am sure that this is a bug in LangChain.js rather than my code. The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package). Example Code Make the model output long texts containing multibyte characters as a stream. import { VertexAI } from "@langchain/google-vertexai"; // Set your project ID and pass the credentials according to the doc. // https://js.langchain.com/docs/integrations/llms/google_vertex_ai const project = "YOUR_PROJECT_ID"; const langchainModel = new VertexAI({ model: "gemini-1.5-pro-preview-0409", location: "us-central1", authOptions: { projectId: project }, }); // EN: List as many Japanese proverbs as possible. const prompt = "日本のことわざをできるだけたくさん挙げて"; for await (const chunk of await langchainModel.stream(prompt)) { process.stdout.write(chunk); } Error Message and Stack Trace (if applicable) (No errors or stack traces occur) Output Example: Includes Replacement Characters (�) ## ������������：知恵の宝庫 日本のことわざは、長い歴史の中で培われた知恵や教訓が詰まった、短い言葉の宝庫で������いくつかご紹介しますね。 **人生・教訓** * **井の中の蛙大海を知らず** (I no naka no kawazu taikai wo shirazu): 狭い世界しか知らない者のたとえ。 * **石の上にも三年** (Ishi no ue ni mo san nen): ������強く努力すれば成功する。 * **案ずるより産むが易し** (Anzuru yori umu ga yasushi): 心配するよりも行動した方が良い。 * **転�������������** (Korobanu saki no tsue): 前もって準備をすることの大切さ。 * **失敗は成功のもと** (Shippai wa seikou no moto): 失敗から学ぶことで成功�������る。 **人���関係** * **類は友を呼ぶ** (Rui wa tomo wo yobu): 似た者同士が仲良くなる。 * **情けは人の為ならず** (Nasake wa hito no tame narazu): 人に親切にすることは巡り巡��て自分に良いことが返ってくる。 * **人の振り見て我が振り直せ** (Hito no furi mite waga furi naose): 他人の行動を見て自分の行動を反省する。 * **出る杭は打たれる** (Deru kui wa utareru): 他人より目���つ��叩かれる。 * **三人寄れば文殊の知恵** (Sannin yoreba monju no chie): みんなで知恵を出し合えば良い考えが浮かぶ。 ... Description This issue occurs when requesting outputs from the model in languages that include multibyte characters, such as Japanese, Chinese, Russian, Greek, and various other languages, or in texts that include emojis 😎. This issue occurs due to the handling of streams containing multibyte characters and the behavior of buffer.toString() method in Node. langchainjs/libs/langchain-google-gauth/src/auth.ts Line 15 in a1ed4fe data.on("data", (data) => this.appendBuffer(data.toString())); When receiving a stream containing multibyte characters, the point at which a chunk (readable.on('data', ...) is executed) is may be in the middle of a character’s byte sequence. For instance, the emoji "👋" is represented in UTF-8 as 0xF0 0x9F 0x91 0x8B. The callback might be executed after only 0xF0 0x9F has been received. buffer.toString() attempts to decode byte sequences assuming UTF-8 encoding. If the bytes are invalid, it does not throw an error, instead silently outputs a REPLACEMENT CHARACTER (�). https://nodejs.org/api/buffer.html#buffers-and-character-encodings To resolve this, use TextDecoder with the stream option. https://developer.mozilla.org/en-US/docs/Web/API/TextDecoder/decode Related Issues The issue has been reported below, but it persists even in the latest version. #4113 The same issue occurred when using Google Cloud's client libraries instead of LangChain, but it has been fixed. googleapis/nodejs-vertexai#78 googleapis/nodejs-vertexai#86 I will send a Pull Request later, but I am not familiar with this codebase, and there are many google-related packages under libs/ which I have not grasped enough. Any advice would be appreciated. System Info macOS node v20.12.2 langchain versions $ npm list --depth=1 | grep langchain ├─┬ @langchain/community@0.0.54 │ ├── @langchain/core@0.1.61 │ ├── @langchain/openai@0.0.28 ├─┬ @langchain/google-vertexai@0.0.12 │ ├── @langchain/core@0.1.61 deduped │ └── @langchain/google-gauth@0.0.12 ├─┬ langchain@0.1.36 │ ├── @langchain/community@0.0.54 deduped │ ├── @langchain/core@0.1.61 deduped │ ├── @langchain/openai@0.0.28 deduped │ ├── @langchain/textsplitters@0.0.0 │ ├── langchainhub@0.0.8

Fixes #6501 I have fixed this issue similarly to #5286. The approach is the same, but we need to use components that work in the Browser environment instead of Node. I previously fixed the same issue for @langchain/google-vertexai in #5285. Although I don't use @langchain/google-vertexai-web myself, I've also fixed this package as it was requested in the issue.

Checked other resources I added a very descriptive title to this issue. I searched the LangChain.js documentation with the integrated search. I used the GitHub search to find a similar question and didn't find it. I am sure that this is a bug in LangChain.js rather than my code. The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package). Example Code Make the model output long texts containing multibyte characters as a stream. import { VertexAI } from "@langchain/google-vertexai-web"; const langchainModel = new VertexAI({ model: "gemini-1.5-pro-001", location: "us-central1", }); // EN: List as many Japanese proverbs as possible. const prompt = "日本のことわざをできるだけたくさん挙げて"; const stream = await langchainModel.stream(prompt); const reader = stream.getReader(); let buf = ""; while (true) { const { done, value } = await reader.read(); if (done) break; buf += value; } console.log(buf); This code can be executed by creating a service account key from the Google Cloud Console and running it with the following command: $ GOOGLE_WEB_CREDENTIALS=$(cat ./key.json) npx tsx sample.ts Error Message and Stack Trace (if applicable) (No errors or stack traces occur) Output Example: Includes Replacement Characters (�) ## ���本の諺 (ことわざ) - できるだけたくさん！ **一般的な知������������** * 石の上にも三年 (いしのうえにもさんねん) - Perseverance will pay off. * 七転び八起き (ななころびやおき) - Fall seven times, stand up eight. * 継続は力なり (けいぞくはちからなり) - Persistence is power. * 急がば回れ (い��がばまわれ) - Haste makes waste. * 井の中の蛙大海を知らず (いのなかのかわずたいかいをしらず) - A frog in a well knows nothing of the great ocean. * 良���は���に苦し (りょうやくはくちにくい) - Good medicine tastes bitter. * 猿も木から落ちる (さるもきからおちる) - Even monkeys fall from trees. * 転石苔を生ぜず (てんせきこけをしょうぜず) - A rolling stone gathers no moss. * 覆水盆に返らず (ふくすいぼんにかえらず) - Spilled water will not return to the tray. * 後生の祭り (ごしょうの�����り) - Too late for regrets. * 習うより慣れろ (ならうよりなれろ) - Experience is the best teacher. * 鉄は熱いうちに打て (てつはあついうちにうて) - Strike while the iron is hot. ... Description This is the same issue as #5285. While #5285 is about @langchain/google-vertexai, this issue also occurs in @langchain/google-vertexai-web. The problem occurs when a stream chunk is cut in the middle of a multibyte character. For detailed reasons, please refer to #5285. I will submit a Pull Request with the fix shortly. System Info macOS node v20.12.2 langchain versions $ npm list --depth=1 | grep langchain ├─┬ @langchain/google-vertexai-web@0.0.25 │ ├── @langchain/core@0.2.23 │ └── @langchain/google-webauth@0.0.25 ├─┬ @langchain/google-vertexai@0.0.25 │ ├── @langchain/core@0.2.23 deduped │ └── @langchain/google-gauth@0.0.25 ├─┬ langchain@0.2.15 │ ├── UNMET OPTIONAL DEPENDENCY @langchain/anthropic@* │ ├── UNMET OPTIONAL DEPENDENCY @langchain/aws@* │ ├── UNMET OPTIONAL DEPENDENCY @langchain/cohere@* │ ├── UNMET OPTIONAL DEPENDENCY @langchain/community@* │ ├── @langchain/core@0.2.23 deduped │ ├── UNMET OPTIONAL DEPENDENCY @langchain/google-genai@* │ ├── @langchain/google-vertexai@0.0.25 deduped │ ├── UNMET OPTIONAL DEPENDENCY @langchain/groq@* │ ├── UNMET OPTIONAL DEPENDENCY @langchain/mistralai@* │ ├── UNMET OPTIONAL DEPENDENCY @langchain/ollama@* │ ├── @langchain/openai@0.2.6 │ ├── @langchain/textsplitters@0.0.3

Environment KFP SDK version: kfp==2.0.0b16 All dependencies version: kfp==2.0.0b16 kfp-pipeline-spec==0.2.2 kfp-server-api==2.0.0b1 Steps to reproduce When running the code snippet below the following error is raised: kfp.components.types.type_utils.InconsistentTypeException: Incompatible argument passed to the input 'val_a' of component 'add': Argument type 'STRING' is incompatible with the input type 'NUMBER_INTEGER' @dsl.component() def add(val_a: int, val_b: int) -> int: return val_a + val_b @dsl.pipeline() def model_training_pipeline() -> None: with dsl.ParallelFor( items=[{"a": 1, "b": 10}, {"a": 2, "b": 20}], parallelism=1 ) as item: task = add(val_a=item.a, val_b=item.b) compiler.Compiler().compile( pipeline_func=model_training_pipeline, package_path="/app/pipeline.yaml" ) Expected result According to the ParallelFor documentation, the code sample above should compile without errors. The add component should receive the values of the dictionaries as integer arguments. Materials and Reference The code snippet below is a modification of the code snippet above, changing the add component to accept string arguments. @dsl.component() def add(val_a: str, val_b: str) -> int: return int(val_a) + int(val_b) @dsl.pipeline() def model_training_pipeline() -> None: with dsl.ParallelFor( items=[{"a": 1, "b": 10}, {"a": 2, "b": 20}], parallelism=1 ) as item: task = add(val_a=item.a, val_b=item.b) compiler.Compiler().compile( pipeline_func=model_training_pipeline, package_path="/app/pipeline.yaml" ) The pipeline compiles without errors with this modification, however it fails to run in Google Vertex Pipelines. The add component doesn't even run and throws the following error in the UI: Failed to evaluate the expression with error: INVALID_ARGUMENT: Failed to parseJson from string.; Failed to evaluate the parameter_expression_selector. As the component's code is not even executed, it seems that the problem occurs when executing the DAG. Here is the content of the pipeline.yaml that was compiled. # PIPELINE DEFINITION # Name: model-training-pipeline components: comp-add: executorLabel: exec-add inputDefinitions: parameters: val_a: parameterType: STRING val_b: parameterType: STRING outputDefinitions: parameters: Output: parameterType: NUMBER_INTEGER comp-for-loop-2: dag: tasks: add: cachingOptions: enableCache: true componentRef: name: comp-add inputs: parameters: val_a: componentInputParameter: pipelinechannel--loop-item-param-1 parameterExpressionSelector: parseJson(string_value)["a"] val_b: componentInputParameter: pipelinechannel--loop-item-param-1 parameterExpressionSelector: parseJson(string_value)["b"] taskInfo: name: add inputDefinitions: parameters: pipelinechannel--loop-item-param-1: parameterType: STRUCT deploymentSpec: executors: exec-add: container: args: - --executor_input - '{{$}}' - --function_to_execute - add command: - sh - -c - "\nif ! [ -x \"$(command -v pip)\" ]; then\n python3 -m ensurepip ||\ \ python3 -m ensurepip --user || apt-get install python3-pip\nfi\n\nPIP_DISABLE_PIP_VERSION_CHECK=1\ \ python3 -m pip install --quiet --no-warn-script-location 'kfp==2.0.0-beta.16'\ \ && \"$0\" \"$@\"\n" - sh - -ec - 'program_path=$(mktemp -d) printf "%s" "$0" > "$program_path/ephemeral_component.py" python3 -m kfp.components.executor_main --component_module_path "$program_path/ephemeral_component.py" "$@" ' - "\nimport kfp\nfrom kfp import dsl\nfrom kfp.dsl import *\nfrom typing import\ \ *\n\ndef add(val_a: str, val_b: str) -> int:\n return int(val_a) +\ \ int(val_b)\n\n" image: python:3.7 pipelineInfo: name: model-training-pipeline root: dag: tasks: for-loop-2: componentRef: name: comp-for-loop-2 iteratorPolicy: parallelismLimit: 1 parameterIterator: itemInput: pipelinechannel--loop-item-param-1 items: raw: '[{"a": 1, "b": 10}, {"a": 2, "b": 20}]' taskInfo: name: for-loop-2 schemaVersion: 2.1.0 sdkVersion: kfp-2.0.0-beta.16 Impacted by this bug? Give it a 👍.