def __repr__(self):
        return "<Requirement(package={package}, version='{version}')>".format(
            package=self.package, version=self.version)
def test_above_or_equal_to():
    """Greater than or equal to y."""
    p = are.above_or_equal_to(4)
    ps = [p(x) for x in range(1, 6)]
    assert ps == [False, False, False, True, True]