from pathlib import Path
from typing import List


class Formatter:
    def __init__(self, *args, **kwargs):
        """ Implementation unknown, this is an Interface"""
        pass

    def make_default_macros(self) -> None:
        pass

    def format_file(self, input_path: Path, output_dir: Path) -> List[str]:
        pass

    def expected_file_name(self) -> str:
        pass