def asi_core():
    """
    Combines self-improving loop with learn from failure.

    Generates code, tests it, if fails calls learn_from_failure to fix it,
    loops until working code achieved, saves result.
    """
    def generate_code():
        # Generate code here
        return "print('Hello World')"

    def test_code(code):
        # Test the generated code here
        try:
            exec(code)
        except Exception as e:
            learn_from_failure(e)

    def learn_from_failure(error):
        # Learn from failure and fix the code here
        print(f"Error: {error}")

    while True:
        code = generate_code()
        test_code(code)
        break

    return code