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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 zip_patterns(self, patterns):
 """ Append suffix to patterns in dictionary if we are in a conditional FP tree. """

        suffix = self.root.value

        if suffix is not None:
            # We are in a conditional tree.
            new_patterns = {}
            for key in patterns.keys():
                new_patterns[tuple(sorted(list(key) + [suffix]))] = patterns[key]

            return new_patterns

        return patterns