from dataclasses import dataclass
from sys import float_info
from typing import TypeAlias;

@dataclass
class DatasetCalculator:
    data_set: list[float]

    def first_quartile(self) -> float:
        self.lower_data_set()

    def second_quartile(self) -> float:
        ...

    def third_quartile(self) -> float:
        ...

    def interquartile_range(self) -> float:
        ...

    def semi_interquartile_range(self) -> float:
        ...

    def strip_outliers(self) -> DatasetCalculator:
        ...

    def lower_data_set(self) -> DatasetCalculator:
        ...

    def upper_data_set(self) -> DatasetCalculator:
        ...

    def median(self) -> float:
        ...

def main():
    ...

if __name__ == '__main__':
    main()