class FasterThanLightError(Exception):
    ...


# DOC502
def calculate_speed(distance: float, time: float) -> float:
    """Calculate speed as distance divided by time.

    Args:
        distance: Distance traveled.
        time: Time spent traveling.

    Returns:
        Speed as distance divided by time.

    Raises:
        FasterThanLightError: If speed is greater than the speed of light.
    """
    return distance / time


# DOC502
def calculate_speed(distance: float, time: float) -> float:
    """Calculate speed as distance divided by time.

    Args:
        distance: Distance traveled.
        time: Time spent traveling.

    Returns:
        Speed as distance divided by time.

    Raises:
        FasterThanLightError: If speed is greater than the speed of light.
        DivisionByZero: Divide by zero.
    """
    return distance / time


# DOC502
def calculate_speed(distance: float, time: float) -> float:
    """Calculate speed as distance divided by time.

    Args:
        distance: Distance traveled.
        time: Time spent traveling.

    Returns:
        Speed as distance divided by time.

    Raises:
        FasterThanLightError: If speed is greater than the speed of light.
        DivisionByZero: Divide by zero.
    """
    try:
        return distance / time
    except ZeroDivisionError as exc:
        raise FasterThanLightError from exc