feat: add validator for eth addresses #159

	# Python Code Quality Analysis
	name: pycqa
	on:
	workflow_dispatch:
	push:
	branches: [master]
	pull_request:
	branches: [master]
	jobs:
	tooling:
	runs-on: ubuntu-latest
	env:
	PIP_DISABLE_PIP_VERSION_CHECK: 1
	steps:
	# checkout repository
	- name: Checkout repository
	uses: actions/checkout@v4
	# set up specific python version
	- name: Set up Python v3.8
	uses: actions/setup-python@v5
	with:
	python-version: "3.8"
	# tooling
	- name: Install 'tooling' dependencies
	run: \|
	pip install .
	pip install -r package/requirements.tooling.txt
	- name: Tooling
	run: \|
	black .
	ruff check .
	pyright .
	testing:
	strategy:
	fail-fast: true
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]
	python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
	runs-on: ${{ matrix.os }}
	steps:
	# checkout repository again!
	# ref: https://github.com/actions/checkout/issues/19
	- name: Checkout repository
	uses: actions/checkout@v4
	# set up specific python version
	- name: Set up Python v${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	cache: "pip"
	# testing
	- name: Install 'testing' dependencies
	run: pip install -r package/requirements.testing.txt
	- name: Testing
	run: pytest .

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