Add new `get_spectrum` and `get_duration` utils #836

	name: Unix

	on: [push, pull_request]

	concurrency:
	group: ${{ github.ref }}-${{ github.head_ref }}-unix
	cancel-in-progress: true

	jobs:
	unittest:
	strategy:
	matrix:
	os: [ubuntu-latest]
	runs-on: ${{ matrix.os }}

	steps:
	- uses: actions/checkout@v2

	- name: Install dependencies
	run: \|
	python3 -m pip install -U pip
	python3 -m pip install -r requirements.txt
	python3 -m pip install -r tests/requirements.txt

	- name: Install
	run: python -m pip install -v .

	- name: Run Unit Tests
	run: python -m pytest tests/

	pyflakes:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Install dependencies
	run: python3 -m pip install -U pyflakes
	- name: pyflakes
	run: python -m pyflakes lasy

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