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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def parse_class_id(self, sel, m, has_selector):
 """Parse HTML classes and ids."""


        selector = m.group(0)
        if selector.startswith('.'):
            sel.classes.append(css_unescape(selector[1:]))
        else:
            sel.ids.append(css_unescape(selector[1:]))
        has_selector = True
        return has_selector