How to use the diffprivlib.mechanisms.DPMechanism function in diffprivlib

def test_class(self):
        from diffprivlib.mechanisms import DPMechanism
        self.assertTrue(issubclass(Staircase, DPMechanism))

def test_instantiation(self):
        with self.assertRaises(TypeError):
            DPMechanism()

def test_class(self):
        from diffprivlib.mechanisms import DPMechanism
        self.assertTrue(issubclass(ExponentialHierarchical, DPMechanism))

def test_class(self):
        from diffprivlib.mechanisms import DPMechanism
        self.assertTrue(issubclass(GeometricFolded, DPMechanism))

def test_class(self):
        from diffprivlib.mechanisms import DPMechanism
        self.assertTrue(issubclass(LaplaceTruncated, DPMechanism))

def test_class(self):
        from diffprivlib.mechanisms import DPMechanism
        self.assertTrue(issubclass(Binary, DPMechanism))

def test_class(self):
        from diffprivlib.mechanisms import DPMechanism
        self.assertTrue(issubclass(Exponential, DPMechanism))

def test_class(self):
        from diffprivlib.mechanisms import DPMechanism
        self.assertTrue(issubclass(LaplaceBoundedNoise, DPMechanism))