sync to flash attention kernel 2.5.9 and add document of how to write custom op #145

	name: build wheel linux aarch64

	on:
	pull_request_target:
	types:
	- closed
	branches:
	- 'main'

	jobs:
	cibuildwheel:
	if: github.event.pull_request.merged == true
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python_version: ['3.7', '3.8', '3.9', '3.10', '3.11']
	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Setup Python
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python_version }}

	- name: Set up QEMU
	uses: docker/setup-qemu-action@v2

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v2

	- name: Create wheels linux aarch64
	run: \|
	PYTHON_VERSION=${{ matrix.python_version }}
	CIBW_BUILD="cp${PYTHON_VERSION//.}-*"
	export CIBW_BUILD
	export CIBW_SKIP=musllinux # skip musllinux builds since numpy hasn't support it yet.
	pip install cibuildwheel
	python -m cibuildwheel --platform linux --archs aarch64 --output-dir ./out

	- name: Upload artifact
	uses: actions/upload-artifact@v2
	with:
	name: wheels
	path: ./out

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