<filename>norma43parser/parsers/movement_line_extra_information_parser.py
import copy

from .date_format import DateFormat
from .line_parser import LineParser
from .. import Norma43Document


class MovementLineExtraInformationParser(LineParser):
    @classmethod
    def parse(cls, line: str, norma_43: Norma43Document, date_format: DateFormat) -> Norma43Document:
        ret = copy.deepcopy(norma_43)
        ret.accounts[-1].movement_lines[-1].extra_information.append(line[4:])
        return ret

<filename>norma43parser/parsers/movement_line_extra_information_parser.py
import copy

from .date_format import DateFormat
from .line_parser import LineParser
from .. import Norma43Document


class MovementLineExtraInformationParser(LineParser):
    @classmethod
    def parse(cls, line: str, norma_43: Norma43Document, date_format: DateFormat) -> Norma43Document:
        ret = copy.deepcopy(norma_43)
        ret.accounts[-1].movement_lines[-1].extra_information.append(line[4:])
        return ret
