import typing


def get_ctffind_4_1_0_extract_dict() -> typing.Dict[str, str]:
    """
    Returns the extraction dict for the ctffind4 meta information.

    Arguments:
    None

    Returns:
    Dictionary with key as key and regular expression as value.
    """
    return {
        'version': r'.*CTFFind version ([^, ]*).*',
        'MicrographNameNoDW': r'.*Input file: ([^ ]*).*',
        'PixelSize': r'.*Pixel size: ([^ ]*).*',
        'Voltage': r'.*acceleration voltage: ([^ ]*).*',
        'SphericalAberration': r'.*spherical aberration: ([^ ]*).*',
        'AmplitudeContrast': r'.*amplitude contrast: ([^ ]*).*',
        }