def METHOD_NAME(self):
    time.sleep(5)
    threshold = int(time.time()) * 10**9
    time.sleep(5)
    for i in range(45, 90):
        key = ("test", "truncate", i)
        rec = {"field": i}
        self.as_connection.put(key, rec)
        self.keys.append(key)
    self.as_connection.truncate("test", "truncate", threshold)
    self._assert_truncation_status(self.truncated_keys[:45], exists=False)
    # Items created after the LUT should still exist
    self._assert_truncation_status(self.truncated_keys[45:], exists=True)