Need help in changing function from python to matlab

Need help in converting this code from python to MATLAB

def square_wave(period, amp):
    def ret(i):
        if i % period < period / 2:
            return amp
        else:
            return -amp

    return ret

Answer 1

[Cris LaPierre]

https://www.mathworks.com/videos/functions-and-subfunctions-97413.html