File IO Demo 1

my_config.py

@dataclasses.dataclass
class MyConfig:
    x: str
    y: str
      

def read_from_file() -> MyConfig:
    with open("my-config.json", "r") as f:
        d = json.load(f)
        return MyConfig(d["x"], d["y"])
    
def write_to_file(c: MyConfig) -> None:
    with open("my-config.json", "w") as f:
      f.write({"x": c.x, "y": c.y})