def evaluate_problem(
    problem_type: str,
    input_file: str,
    # ) -> problems.EvaluationSingleObjective | problems.EvaluationMultiObjective:
):
    pass
    # with Path(input_file).open("r") as f:
    #     raw = f.read()
    #     data_dict = json.loads(raw)
    #     data = data_dict['boundary_json']

    # print("Starting evaluation.")

    # match problem_type:
    #     case "geometrical":
    #         boundary = load_boundary(data)
    #         result = problems.GeometricalProblem().evaluate(boundary)
    #     case "simple_to_build":
    #         boundary = load_boundary(data)
    #         result = problems.SimpleToBuildQIStellarator().evaluate(boundary)
    #     case "mhd_stable":
    #         boundaries = load_boundaries(data)
    #         result = problems.MHDStableQIStellarator().evaluate(boundaries)
    #     case _:
    #         raise ValueError(f"Unknown problem type: {problem_type}")

    # print("Finished evaluation.")
    # return result