human
Solve the following python programming problem given the following code:
def check(self, tags) : 
    '
        Checks if this tag expression matches the tags of a model element.

        :param tags:  List of tags of a model element.
        :return: True, if tag expression matches. False, otherwise.
        ' 
    if (not self.ands) : 
        return True 
element_tags = set (element_tags) 
    def test_tag(xtag) : 
        if xtag.startswith ('-') : 
            return (xtag [1 :] not in element_tags) 
return (xtag in element_tags) 
return all ((any ((test_tag (xtag) for xtag in ors)) for ors in self.ands)) 

    
    

    Fix the buggy line: element_tags = set (element_tags)
assistant
#Here is Python program to fix the buggy line: element_tags = set (element_tags)
.

element_tags = set (tags)