@classmethod
def get(cls, index):
    """
        Returns the :class:`.IOLine` for the given index.

        Args:
            index (Integer): Returns the :class:`.IOLine` for the given index.

        Returns:
            :class:`.IOLine`: :class:`.IOLine` with the given code, ``None`` if there is not any line with that index.
        """
    try:
        return cls.lookupTable[index]
    except KeyError:
        return None
