How to use pfun - 10 common examples

def test() -> Maybe[int]:
    return Just(1)

def test_stack_safety(self):
        with recursion_limit(100):
            sequence([Done(v) for v in range(500)]).run()

def test() -> List[int]:
    return List(['1', '2', '3']).and_then(lambda x: List([x**2]))

def test() -> List[str]:
    return List(i for i in (1, 2, 3)).and_then(lambda x: List([x**2]))

def test() -> List[int]:
    return List([1])

        e = e.recover(lambda _: effect.success(''))
        with recursion_limit(100):

def test_stack_safety(self):
        with recursion_limit(100):
            cont.sequence([cont.value(v) for v in range(500)]).run(identity)

def test_identity_law(self, value):
        assert Left(value).map(identity) == Left(value)
        assert Right(value).map(identity) == Right(value)

def test_map_m(self):
        assert map_m(Right, range(3)) == Right((0, 1, 2))

def test_composition_law(self, f: Unary, g: Unary, value):
        h = compose(f, g)
        assert Left(value).map(h) == Left(value).map(g).map(f)
        assert Right(value).map(h) == Right(value).map(g).map(f)