import typing


def filter_line(
        line: str,
        filters: typing.Optional[typing.Iterable[str]]
) -> typing.Optional[str]:
    """
    Filters out line that contain substring

    Args:
        line: line to filter
        filters: filter strings to apply

    Returns: line if not filter are found in line, else None

    """
    if filters is not None:
        for filter_ in filters:
            if filter_ in line:
                return None
    return line