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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 is_match(self, subject: Union[Expression, FlatTerm]) -> bool: """Check if the given subject matches any pattern in the net. Args: subject: The subject that is matched. Must be constant. Returns: True, if any pattern matches the subject. """

        try:
            next(self.match(subject))
        except StopIteration:
            return False
        return True