def METHOD_NAME(self, tag: str, text_string: str, global_step: int = None):
    """
    Add a text to SGLogger.
    Typically, this function will add a text to tensorboard or add it to experiment management framework.
    :param tag: Data identifier
    :param text_string: the text to be added
    :param global_step: Global step value to record
    """
    raise NotImplementedError