def snapshot(self, filename="tmp.png"):
        """
        Take a screenshot and save it to `tmp.png` filename by default

        Args:
            filename: name of file where to store the screenshot

        Returns:
            display the screenshot

        """
        if not filename:
            filename = "tmp.png"
        if self.handle:
            try:
                screenshot(filename, self.handle)
            except win32gui.error:
                self.handle = None
                screenshot(filename)
        else:
            screenshot(filename)

        img = aircv.imread(filename)
        os.remove(filename)

        return img
Take a screenshot and save it to `tmp.png` filename by default

        Args:
            filename: name of file where to store the screenshot

        Returns:
            display the screenshot