def save(self, filename=None):
        filename = Path(filename) if filename is not None else self.filename
        with filename.open("w") as f:
            f.write(self.yaml)
def test_should_encode_node_with_label_and_property(self):
        a = Node("Person", name="Alice")
        encoded = cypher_repr(a, node_template="{labels} {properties}")
        assert encoded == u"(:Person {name: 'Alice'})"