def set(self, property_dict):
self.metadata = self.db.update(self.path, property_dict).json()<EOL>
Attempts to set the given properties of the object.
        An example of this is setting the nickname of the object::

            cdb.set({"nickname": "My new nickname"})

        note that there is a convenience property `cdb.nickname` that allows you to get/set the nickname directly.