Testing File IO demo 2

my_config.py

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