Add README, pydoc and notebook #21

	name: Python lint

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	jobs:
	lint_langchain:
	name: Lint LangChain - Python ${{ matrix.python-version }}
	runs-on: ubuntu-latest
	defaults:
	run:
	working-directory: ./langchain
	strategy:
	matrix:
	python-version: ['3.9', '3.13']
	steps:
	- uses: actions/checkout@v4
	with:
	ref: ${{ github.ref }}
	- name: Install uv
	uses: astral-sh/setup-uv@v3
	with:
	enable-cache: true
	cache-dependency-glob: "langchain/uv.lock"
	- name: "Set up Python"
	uses: actions/setup-python@v5
	with:
	python-version-file: "langchain/pyproject.toml"
	- name: Restore uv cache
	uses: actions/cache@v4
	with:
	path: /tmp/.uv-cache
	key: uv-langchain-${{ hashFiles('langchain/uv.lock') }}
	restore-keys: \|
	uv-langchain-${{ hashFiles('langchain/uv.lock') }}
	uv-${{ runner.os }}
	- name: Install the project
	run: uv sync --dev
	- name: Run ruff format check
	run: uv run ruff format --check
	- name: Run ruff check
	run: uv run ruff check
	# - name: Run mypy
	# run: uv run mypy .
	- name: Minimize uv cache
	run: uv cache prune --ci

Provide feedback