Add static method from_optional #80

	name: Run Python Tests
	on:
	push:
	branches:
	- main
	pull_request:

	jobs:
	tests:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python:
	- '3.7'
	- '3.8'
	- '3.9'
	- '3.10'
	steps:
	- uses: actions/checkout@v2
	- name: Install Python 3
	uses: actions/setup-python@v1
	with:
	python-version: ${{ matrix.python }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements_dev.txt
	- name: Install rusty_results
	run: pip install -e .
	- name: Run tests with pytest
	run: pytest
	- name: Run mypy on result.py
	run: mypy rusty_results/prelude.py
	- name: Build coverage file
	run: pytest --cache-clear --cov=rusty_results --cov-report=xml:pytest-coverage.xml ./rusty_results
	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v1
	with:
	files: ./pytest-coverage.xml
	fail_ci_if_error: true

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