Spaces:
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Create pipeline.py
Browse files- pipeline.py +481 -0
pipeline.py
ADDED
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| 1 |
+
from typing import TypedDict, List, Annotated
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| 2 |
+
import json
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| 3 |
+
import time
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| 4 |
+
from contextlib import contextmanager
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| 5 |
+
from pathlib import Path
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| 6 |
+
import json, re
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| 7 |
+
import tempfile
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| 8 |
+
import zipfile, tarfile
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| 9 |
+
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| 10 |
+
from langchain_core.documents import Document
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| 11 |
+
from langchain_text_splitters import RecursiveCharacterTextSplitter
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| 12 |
+
from langchain_community.vectorstores import FAISS
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| 13 |
+
from langchain_huggingface import HuggingFaceEmbeddings
|
| 14 |
+
from langchain_community.llms.yandex import YandexGPT
|
| 15 |
+
from langgraph.graph import StateGraph, END
|
| 16 |
+
from langgraph.graph.message import add_messages
|
| 17 |
+
|
| 18 |
+
from dotenv import load_dotenv
|
| 19 |
+
load_dotenv()
|
| 20 |
+
|
| 21 |
+
from pathlib import Path
|
| 22 |
+
import os
|
| 23 |
+
from pypdf import PdfReader
|
| 24 |
+
|
| 25 |
+
# ====================== CONFIG ======================
|
| 26 |
+
|
| 27 |
+
YANDEX_API_KEY = os.getenv("YANDEX_API_KEY")
|
| 28 |
+
YANDEX_FOLDER_ID = os.getenv("YANDEX_FOLDER_ID")
|
| 29 |
+
|
| 30 |
+
# --- LLMs ---
|
| 31 |
+
llm_reasoning = YandexGPT(
|
| 32 |
+
api_key=YANDEX_API_KEY,
|
| 33 |
+
folder_id=YANDEX_FOLDER_ID,
|
| 34 |
+
temperature=0.3,
|
| 35 |
+
max_tokens=2000
|
| 36 |
+
)
|
| 37 |
+
|
| 38 |
+
llm_output = YandexGPT(
|
| 39 |
+
api_key=YANDEX_API_KEY,
|
| 40 |
+
folder_id=YANDEX_FOLDER_ID,
|
| 41 |
+
temperature=0.4,
|
| 42 |
+
max_tokens=6500
|
| 43 |
+
)
|
| 44 |
+
|
| 45 |
+
def llm_analyze(prompt: str) -> str:
|
| 46 |
+
return llm_reasoning.invoke(prompt)
|
| 47 |
+
|
| 48 |
+
def llm_final(prompt: str) -> str:
|
| 49 |
+
return llm_output.invoke(prompt)
|
| 50 |
+
|
| 51 |
+
# --- Logging ---
|
| 52 |
+
@contextmanager
|
| 53 |
+
def log_step(name: str):
|
| 54 |
+
print(f"\n>>> START: {name}")
|
| 55 |
+
start = time.time()
|
| 56 |
+
try:
|
| 57 |
+
yield
|
| 58 |
+
finally:
|
| 59 |
+
print(f"<<< END: {name} ({time.time() - start:.2f}s)")
|
| 60 |
+
|
| 61 |
+
# ====================== STATE ======================
|
| 62 |
+
|
| 63 |
+
class GraphState(TypedDict):
|
| 64 |
+
query: str
|
| 65 |
+
toc: str
|
| 66 |
+
toc_analysis: str
|
| 67 |
+
plan: dict
|
| 68 |
+
retrieval_queries: List[str]
|
| 69 |
+
contexts: List[Document]
|
| 70 |
+
result: dict
|
| 71 |
+
iteration: int
|
| 72 |
+
recurse: bool
|
| 73 |
+
|
| 74 |
+
# ====================== ARCHIVE PROCESSING ======================
|
| 75 |
+
|
| 76 |
+
def read_file(file_path: Path) -> str:
|
| 77 |
+
suffix = file_path.suffix.lower()
|
| 78 |
+
|
| 79 |
+
try:
|
| 80 |
+
# --- PDF ---
|
| 81 |
+
if suffix == ".pdf":
|
| 82 |
+
reader = PdfReader(str(file_path))
|
| 83 |
+
text = []
|
| 84 |
+
for page in reader.pages:
|
| 85 |
+
text.append(page.extract_text() or "")
|
| 86 |
+
return "\n".join(text)
|
| 87 |
+
|
| 88 |
+
# --- TXT / CODE ---
|
| 89 |
+
elif suffix in [".txt", ".md", ".py", ".json"]:
|
| 90 |
+
return file_path.read_text(encoding="utf-8", errors="ignore")
|
| 91 |
+
|
| 92 |
+
# --- fallback ---
|
| 93 |
+
else:
|
| 94 |
+
return file_path.read_text(encoding="utf-8", errors="ignore")
|
| 95 |
+
|
| 96 |
+
except Exception as e:
|
| 97 |
+
print(f"⚠️ Ошибка чтения {file_path}: {e}")
|
| 98 |
+
return ""
|
| 99 |
+
|
| 100 |
+
|
| 101 |
+
def extract_archive_to_documents(archive_path: str) -> List[Document]:
|
| 102 |
+
documents = []
|
| 103 |
+
|
| 104 |
+
with tempfile.TemporaryDirectory() as tmpdir:
|
| 105 |
+
tmp_path = Path(tmpdir)
|
| 106 |
+
|
| 107 |
+
if archive_path.endswith('.zip'):
|
| 108 |
+
with zipfile.ZipFile(archive_path) as z:
|
| 109 |
+
z.extractall(tmpdir)
|
| 110 |
+
elif archive_path.endswith(('.tar', '.tar.gz', '.tgz')):
|
| 111 |
+
with tarfile.open(archive_path) as t:
|
| 112 |
+
t.extractall(tmpdir)
|
| 113 |
+
else:
|
| 114 |
+
raise ValueError(f"Unsupported archive: {archive_path}")
|
| 115 |
+
|
| 116 |
+
for file_path in tmp_path.rglob("*"):
|
| 117 |
+
if file_path.is_file() and not file_path.name.startswith('.'):
|
| 118 |
+
try:
|
| 119 |
+
relative_path = file_path.relative_to(tmp_path)
|
| 120 |
+
text = read_file(file_path)
|
| 121 |
+
|
| 122 |
+
if not text.strip():
|
| 123 |
+
continue
|
| 124 |
+
|
| 125 |
+
doc = Document(
|
| 126 |
+
page_content=text,
|
| 127 |
+
metadata={
|
| 128 |
+
"source": str(relative_path),
|
| 129 |
+
"file_name": file_path.name,
|
| 130 |
+
"file_type": file_path.suffix.lower(),
|
| 131 |
+
"size_bytes": file_path.stat().st_size,
|
| 132 |
+
}
|
| 133 |
+
)
|
| 134 |
+
documents.append(doc)
|
| 135 |
+
|
| 136 |
+
except Exception as e:
|
| 137 |
+
print(f"⚠️ Не удалось обработать {file_path}: {e}")
|
| 138 |
+
|
| 139 |
+
print(f"Извлечено {len(documents)} документов из архива")
|
| 140 |
+
return documents
|
| 141 |
+
|
| 142 |
+
|
| 143 |
+
# ====================== VECTORSTORE ======================
|
| 144 |
+
|
| 145 |
+
def build_vectorstore(docs: List[Document]):
|
| 146 |
+
with log_step("Building FAISS Vectorstore"):
|
| 147 |
+
splitter = RecursiveCharacterTextSplitter(
|
| 148 |
+
chunk_size=1200,
|
| 149 |
+
chunk_overlap=150,
|
| 150 |
+
separators=["\n\n", "\n", ". ", " ", ""]
|
| 151 |
+
)
|
| 152 |
+
|
| 153 |
+
splits = splitter.split_documents(docs)
|
| 154 |
+
|
| 155 |
+
embeddings = HuggingFaceEmbeddings(model_name="sentence-transformers/all-MiniLM-L6-v2")
|
| 156 |
+
|
| 157 |
+
db = FAISS.from_documents(splits, embeddings)
|
| 158 |
+
retriever = db.as_retriever(
|
| 159 |
+
search_type="mmr",
|
| 160 |
+
search_kwargs={"k": 10, "fetch_k": 25, "lambda_mult": 0.7}
|
| 161 |
+
)
|
| 162 |
+
return db, retriever
|
| 163 |
+
|
| 164 |
+
# ====================== NODES ======================
|
| 165 |
+
|
| 166 |
+
def analyze_toc(state: GraphState):
|
| 167 |
+
with log_step("analyze_toc"):
|
| 168 |
+
prompt = f"Оглавление курса:\n{state['toc']}\n\nКратко опиши структуру курса, выделив основные разделы и логику."
|
| 169 |
+
toc_analysis = llm_analyze(prompt)
|
| 170 |
+
return {"toc_analysis": toc_analysis}
|
| 171 |
+
|
| 172 |
+
|
| 173 |
+
def planner(state: GraphState):
|
| 174 |
+
with log_step("planner"):
|
| 175 |
+
prompt = f"""
|
| 176 |
+
Оглавление:
|
| 177 |
+
{state['toc']}
|
| 178 |
+
|
| 179 |
+
Анализ структуры:
|
| 180 |
+
{state['toc_analysis']}
|
| 181 |
+
|
| 182 |
+
Запрос пользователя:
|
| 183 |
+
{state['query']}
|
| 184 |
+
|
| 185 |
+
Составь план retrieval'а. Верни JSON:
|
| 186 |
+
{{
|
| 187 |
+
"sections": ["список ключевых тем"],
|
| 188 |
+
"queries": ["конкретные поисковые запросы для RAG"]
|
| 189 |
+
}}
|
| 190 |
+
"""
|
| 191 |
+
raw = llm_analyze(prompt)
|
| 192 |
+
try:
|
| 193 |
+
plan = json.loads(raw)
|
| 194 |
+
except:
|
| 195 |
+
plan = {"sections": [], "queries": [state["query"]]}
|
| 196 |
+
|
| 197 |
+
return {
|
| 198 |
+
"plan": plan,
|
| 199 |
+
"retrieval_queries": plan.get("queries", [state["query"]]),
|
| 200 |
+
"iteration": 0
|
| 201 |
+
}
|
| 202 |
+
|
| 203 |
+
|
| 204 |
+
def retrieve(state: GraphState):
|
| 205 |
+
with log_step("retrieve"):
|
| 206 |
+
all_docs = []
|
| 207 |
+
for q in state["retrieval_queries"]:
|
| 208 |
+
docs = retriever.invoke(q)
|
| 209 |
+
all_docs.extend(docs)
|
| 210 |
+
|
| 211 |
+
seen = set()
|
| 212 |
+
unique_docs = []
|
| 213 |
+
for doc in all_docs:
|
| 214 |
+
content_hash = hash(doc.page_content[:200])
|
| 215 |
+
if content_hash not in seen:
|
| 216 |
+
seen.add(content_hash)
|
| 217 |
+
unique_docs.append(doc)
|
| 218 |
+
|
| 219 |
+
print(f"Retrieved {len(unique_docs)} unique documents")
|
| 220 |
+
return {
|
| 221 |
+
"contexts": state["contexts"] + unique_docs
|
| 222 |
+
}
|
| 223 |
+
|
| 224 |
+
def check_completeness(state: GraphState):
|
| 225 |
+
with log_step("check_completeness"):
|
| 226 |
+
state["iteration"] += 1
|
| 227 |
+
|
| 228 |
+
context_text = "\n\n".join(doc.page_content for doc in state["contexts"])[:6000]
|
| 229 |
+
|
| 230 |
+
prompt = f"""
|
| 231 |
+
Запрос пользователя: {state['query']}
|
| 232 |
+
|
| 233 |
+
Текущий контекст имеет {len(state['contexts'])} документов.
|
| 234 |
+
|
| 235 |
+
Проанализируй, достаточно ли материала для создания полноценного 9-недельного интенсивного курса.
|
| 236 |
+
|
| 237 |
+
Верни JSON:
|
| 238 |
+
{{
|
| 239 |
+
"enough": true или false,
|
| 240 |
+
"next_query": "если не enough — один хороший поисковый запрос, иначе пустая строка"
|
| 241 |
+
}}
|
| 242 |
+
"""
|
| 243 |
+
|
| 244 |
+
raw = llm_analyze(prompt)
|
| 245 |
+
|
| 246 |
+
try:
|
| 247 |
+
match = re.search(r'\{[\s\S]*\}', raw)
|
| 248 |
+
data = json.loads(match.group(0)) if match else json.loads(raw)
|
| 249 |
+
|
| 250 |
+
enough = data.get("enough", False)
|
| 251 |
+
next_query = data.get("next_query", "").strip()
|
| 252 |
+
|
| 253 |
+
print(f"Enough: {enough}")
|
| 254 |
+
if next_query:
|
| 255 |
+
print(f"→ New query: {next_query}")
|
| 256 |
+
|
| 257 |
+
if not enough and next_query and state["iteration"] < 4:
|
| 258 |
+
return {
|
| 259 |
+
"retrieval_queries": state["retrieval_queries"] + [next_query],
|
| 260 |
+
"recurse": True
|
| 261 |
+
}
|
| 262 |
+
else:
|
| 263 |
+
return {"recurse": False}
|
| 264 |
+
|
| 265 |
+
except Exception as e:
|
| 266 |
+
print(f"Parse error in check_completeness: {e}")
|
| 267 |
+
return {"recurse": False}
|
| 268 |
+
|
| 269 |
+
|
| 270 |
+
def generate_weekly_plan(state: GraphState):
|
| 271 |
+
with log_step("generate_weekly_plan"):
|
| 272 |
+
|
| 273 |
+
context_blocks = []
|
| 274 |
+
for doc in state["contexts"][:25]:
|
| 275 |
+
meta = doc.metadata
|
| 276 |
+
source = meta.get("source") or meta.get("file_name", "unknown")
|
| 277 |
+
preview = doc.page_content[:700].replace("\n", " ").strip()
|
| 278 |
+
context_blocks.append(f"Источник → {source}\n{preview}...\n")
|
| 279 |
+
|
| 280 |
+
context_text = "\n\n" + "-" * 80 + "\n\n".join(context_blocks)
|
| 281 |
+
|
| 282 |
+
prompt = f"""Ты — строгий профессиональный методист.
|
| 283 |
+
Отвечай **исключительно валидным JSON**, без единого слова вне объекта.
|
| 284 |
+
|
| 285 |
+
Запрос пользователя: {state['query']}
|
| 286 |
+
|
| 287 |
+
Оглавление курса:
|
| 288 |
+
{state.get('toc', 'Не предоставлено')}
|
| 289 |
+
|
| 290 |
+
Доступные материалы:
|
| 291 |
+
{context_text}
|
| 292 |
+
|
| 293 |
+
Создай понедельный учебный план.
|
| 294 |
+
В одной неделе может быть от 2 до 5 занятий.
|
| 295 |
+
|
| 296 |
+
Если требуется усиленный курс, то надо от 3х занятий в неделю.
|
| 297 |
+
|
| 298 |
+
Верни **ТОЛЬКО** этот JSON (начинай сразу с '{{'):
|
| 299 |
+
|
| 300 |
+
{{
|
| 301 |
+
"course_title": "Название курса",
|
| 302 |
+
"duration_weeks": число,
|
| 303 |
+
"weekly_plan": [
|
| 304 |
+
{{
|
| 305 |
+
"week": 1,
|
| 306 |
+
"theme": "Общая тема недели",
|
| 307 |
+
"sessions": [
|
| 308 |
+
{{
|
| 309 |
+
"session_number": 1,
|
| 310 |
+
"title": "Название конкретного занятия",
|
| 311 |
+
"goal": "Подробная мотивировка и цель занятия (что студент должен понять и уметь)",
|
| 312 |
+
"main_sources": [
|
| 313 |
+
{{
|
| 314 |
+
"material": "Название учебника или лекции",
|
| 315 |
+
"chapter": "§1 Проективное пространство",
|
| 316 |
+
"section": "1.1 Соглашения об обозначениях, 1.2 Определение",
|
| 317 |
+
"file_source": "имя_файла.pdf"
|
| 318 |
+
}}
|
| 319 |
+
],
|
| 320 |
+
"preparation_materials": ["список строк для подготовки"],
|
| 321 |
+
"practice_and_homework": ["конкретные задания, задачи, домашняя работа"],
|
| 322 |
+
"estimated_time": "3–5 часов"
|
| 323 |
+
}}
|
| 324 |
+
]
|
| 325 |
+
}}
|
| 326 |
+
],
|
| 327 |
+
"additional_recommendations": "Общие рекомендации"
|
| 328 |
+
}}
|
| 329 |
+
|
| 330 |
+
Правила, которых нужно строго придерживаться:
|
| 331 |
+
- Используй реальные названия глав, параграфов и файлов из предоставленных материалов.
|
| 332 |
+
- Обязательно заполняй поле "goal" — подробная мотивировка, зачем это занятие нужно.
|
| 333 |
+
- Поле "file_source" должно содержать реальное имя файла из метаданных, если возможно.
|
| 334 |
+
- В одной неделе можно делать несколько занятий (sessions).
|
| 335 |
+
- Не пиши ничего кроме JSON.
|
| 336 |
+
"""
|
| 337 |
+
|
| 338 |
+
raw = llm_final(prompt)
|
| 339 |
+
|
| 340 |
+
try:
|
| 341 |
+
cleaned = raw.strip()
|
| 342 |
+
if cleaned.startswith("```"):
|
| 343 |
+
cleaned = cleaned.split("```")[1].strip()
|
| 344 |
+
if cleaned.lower().startswith(("json", "```json")):
|
| 345 |
+
cleaned = cleaned.split("\n", 1)[-1].strip()
|
| 346 |
+
|
| 347 |
+
plan = json.loads(cleaned)
|
| 348 |
+
|
| 349 |
+
except json.JSONDecodeError:
|
| 350 |
+
import re
|
| 351 |
+
match = re.search(r'(\{[\s\S]*\})', raw, re.DOTALL)
|
| 352 |
+
if match:
|
| 353 |
+
try:
|
| 354 |
+
plan = json.loads(match.group(1))
|
| 355 |
+
except:
|
| 356 |
+
plan = {"error": "JSON parse failed", "raw_preview": raw[:1000]}
|
| 357 |
+
else:
|
| 358 |
+
plan = {"error": "JSON parse failed", "raw_preview": raw[:800]}
|
| 359 |
+
|
| 360 |
+
|
| 361 |
+
return {"result": plan}
|
| 362 |
+
|
| 363 |
+
|
| 364 |
+
def make_final_output_pretty(state: GraphState):
|
| 365 |
+
import json
|
| 366 |
+
|
| 367 |
+
raw_plan = state["result"]
|
| 368 |
+
|
| 369 |
+
if isinstance(raw_plan, dict):
|
| 370 |
+
plan_str = json.dumps(raw_plan, ensure_ascii=False, indent=2)
|
| 371 |
+
else:
|
| 372 |
+
plan_str = str(raw_plan)
|
| 373 |
+
|
| 374 |
+
prompt = f"""
|
| 375 |
+
Ты — отличный технический писатель и методист.
|
| 376 |
+
|
| 377 |
+
У тебя есть следующий JSON с учебным планом (возможно, неидеальный):
|
| 378 |
+
|
| 379 |
+
{plan_str}
|
| 380 |
+
|
| 381 |
+
Твоя задача:
|
| 382 |
+
преобразовать его в КРАСИВЫЙ и СТРУКТУРИРОВАННЫЙ Markdown-документ.
|
| 383 |
+
|
| 384 |
+
Требования:
|
| 385 |
+
- Используй заголовки (#, ##, ###)
|
| 386 |
+
- Выделяй недели как отдельные секции
|
| 387 |
+
- Для каждой недели:
|
| 388 |
+
- тема
|
| 389 |
+
- список занятий (bullets)
|
| 390 |
+
- краткое описание (если есть)
|
| 391 |
+
- Добавь читаемую структуру курса
|
| 392 |
+
- В конце добавь раздел "Рекомендации"
|
| 393 |
+
- Убери технический мусор и JSON-структуру
|
| 394 |
+
- Сделай текст естественным, как учебный материал
|
| 395 |
+
|
| 396 |
+
Формат:
|
| 397 |
+
# Название курса
|
| 398 |
+
|
| 399 |
+
## Неделя 1 — Тема
|
| 400 |
+
- Занятие 1
|
| 401 |
+
- Занятие 2
|
| 402 |
+
|
| 403 |
+
## Неделя 2 — ...
|
| 404 |
+
|
| 405 |
+
## Рекомендации
|
| 406 |
+
|
| 407 |
+
Верни ТОЛЬКО Markdown, без JSON и без пояснений.
|
| 408 |
+
"""
|
| 409 |
+
|
| 410 |
+
pretty = llm_final(prompt)
|
| 411 |
+
|
| 412 |
+
return {"result": pretty}
|
| 413 |
+
|
| 414 |
+
|
| 415 |
+
# ====================== GRAPH ======================
|
| 416 |
+
def should_continue(state: GraphState) -> str:
|
| 417 |
+
if state.get("recurse") is True:
|
| 418 |
+
return "retrieve"
|
| 419 |
+
return "generate_weekly_plan"
|
| 420 |
+
|
| 421 |
+
|
| 422 |
+
builder = StateGraph(GraphState)
|
| 423 |
+
|
| 424 |
+
builder.add_node("analyze_toc", analyze_toc)
|
| 425 |
+
builder.add_node("planner", planner)
|
| 426 |
+
builder.add_node("retrieve", retrieve)
|
| 427 |
+
builder.add_node("check_completeness", check_completeness)
|
| 428 |
+
builder.add_node("generate_weekly_plan", generate_weekly_plan)
|
| 429 |
+
builder.add_node("pretty_output", make_final_output_pretty)
|
| 430 |
+
|
| 431 |
+
builder.set_entry_point("analyze_toc")
|
| 432 |
+
|
| 433 |
+
builder.add_edge("analyze_toc", "planner")
|
| 434 |
+
builder.add_edge("planner", "retrieve")
|
| 435 |
+
builder.add_edge("retrieve", "check_completeness")
|
| 436 |
+
|
| 437 |
+
builder.add_conditional_edges(
|
| 438 |
+
"check_completeness",
|
| 439 |
+
should_continue,
|
| 440 |
+
{
|
| 441 |
+
"retrieve": "retrieve",
|
| 442 |
+
"generate_weekly_plan": "generate_weekly_plan"
|
| 443 |
+
}
|
| 444 |
+
)
|
| 445 |
+
|
| 446 |
+
builder.add_edge("generate_weekly_plan", "pretty_output")
|
| 447 |
+
builder.add_edge("pretty_output", END)
|
| 448 |
+
|
| 449 |
+
graph = builder.compile()
|
| 450 |
+
|
| 451 |
+
# ====================== GLOBAL ======================
|
| 452 |
+
retriever = None
|
| 453 |
+
toc_text = ""
|
| 454 |
+
|
| 455 |
+
# ====================== MAIN PIPELINE ======================
|
| 456 |
+
|
| 457 |
+
def run_course_builder(query: str, toc: str, archive_path: str):
|
| 458 |
+
global retriever, toc_text
|
| 459 |
+
|
| 460 |
+
toc_text = toc
|
| 461 |
+
|
| 462 |
+
documents = extract_archive_to_documents(archive_path)
|
| 463 |
+
|
| 464 |
+
_, retriever = build_vectorstore(documents)
|
| 465 |
+
|
| 466 |
+
initial_state = {
|
| 467 |
+
"query": query,
|
| 468 |
+
"toc": toc_text,
|
| 469 |
+
"toc_analysis": "",
|
| 470 |
+
"plan": {},
|
| 471 |
+
"retrieval_queries": [],
|
| 472 |
+
"contexts": [],
|
| 473 |
+
"result": {},
|
| 474 |
+
"iteration": 0,
|
| 475 |
+
"recurse": False
|
| 476 |
+
}
|
| 477 |
+
|
| 478 |
+
final_state = graph.invoke(initial_state)
|
| 479 |
+
|
| 480 |
+
return final_state["result"]
|
| 481 |
+
|