def change_content_type(self, new_ctype, guess=False):
        self.container.change_object_content_type(self, new_ctype=new_ctype,
                guess=guess)
Copies object to itself, but applies a new content-type. The guess
dataset/ETHPy150Open rackspace/pyrax/pyrax/object_storage.py/StorageObject.change_content_type