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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 matches_pattern(self, other):
 """Test Address object matches the pattern of another object."""

        matches = False
        if hasattr(other, 'addr'):
            if self.addr is None or other.addr is None:
                matches = True
            else:
                matches = self.addr == other.addr
        return matches