#!/usr/bin/env python
# Created by "Thieu" at 19:11, 19/03/2023 ----------%                                                                               
#       Email: nguyenthieu2102@gmail.com            %                                                    
#       Github: https://github.com/thieu1995        %                         
# --------------------------------------------------%

def foo(uppercase: bool = False) -> str:
    if uppercase:
        return "FOO"
    return "foo"
