def __remove_leading_empty_lines(lines):
        """
        Removes leading empty lines from a list of lines.

        :param list[str] lines: The lines.
        """
        tmp = list()
        empty = True
        for i in range(0, len(lines)):
            empty = empty and lines[i] == ''
            if not empty:
                tmp.append(lines[i])

        return tmp