scenarios.py

import numpy as np

def plot(scenario: Scenario):
    print(scenario.data)

class Scenario:
    def __init__(
        self,
        some_modifier=2
        data=None
    ):
        self.some_modifier = some_modifier
        if data is None:
            self.data = np.array([1, 2, 3, 4])
        else:
            self.data = data

    @classmethod
    def run_scenario(cls, base: scenario) -> Scenario:
        return cls(data=self.data * self.some_modifier)


if __name__ == '__main__':
    unsolved = Scenario()
    plot(unsolved)

    solved = Scenario.run_scenario(unsolved)
    plot(solved)