How to use the cibuildwheel.macos function in cibuildwheel

def mock_protection(monkeypatch):
    '''
    Ensure that a unit test will never actually run a cibuildwheel 'build'
    function, which shouldn't be run on a developer's machine
    '''

    def fail_on_call(*args, **kwargs):
        raise RuntimeError("This should never be called")

    monkeypatch.setattr(subprocess, 'Popen', fail_on_call)
    monkeypatch.setattr(util, 'download', fail_on_call)
    monkeypatch.setattr(windows, 'build', fail_on_call)
    monkeypatch.setattr(linux, 'build', fail_on_call)
    monkeypatch.setattr(macos, 'build', fail_on_call)