def METHOD_NAME(position: pd.Series, buffer: pd.Series) -> pd.DataFrame:
    top_position = position.ffill() + buffer.ffill()
    bottom_position = position.ffill() - buffer.ffill()
    pos_buffers = pd.concat([top_position, bottom_position], axis=1)
    pos_buffers.columns = ["top_pos", "bot_pos"]
    return pos_buffers