from typing import List


def _hyphens_exists_next_line(
        line_splitted_list: List[str], next_line_idx: int) -> bool:
    """
    Get the boolean value of whether there are multiple hyphen
    characters on the next line.

    Parameters
    ----------
    line_splitted_list : list of str
        A list containing line-by-line strings.
    next_line_idx : int
        Next line index.

    Returns
    -------
    result_bool : bool
        If exists, True will be set.
    """
    if len(line_splitted_list) < next_line_idx + 1:
        return False
    next_line_str: str = line_splitted_list[next_line_idx]
    is_in: bool = '----' in next_line_str
    if is_in:
        return True
    return False