<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def match_all(self, pattern):
 """ Test method, not suggested to use """

        pattern = self.pattern_open(pattern)
        search_img = pattern.image
        screen = self.region_screenshot()
        screen = imutils.from_pillow(screen)
        points = ac.find_all_template(screen, search_img, maxcnt=10)
        return points