def METHOD_NAME(self, seconds: float) -> None:
    """Manually advance the clock by the given number of seconds.
    Args:
      seconds (float): the number of seconds to jump the clock forward.
    Raises:
      ValueError: if you try to pass a negative value for ``seconds``.
    """
    if seconds < 0:
        raise ValueError("time can't go backwards")
    self._virtual_base += seconds