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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 cpu_frequency(self) -> str: """Get a random frequency of CPU. :return: Frequency of CPU. :Example: 4.0 GHz. """

        return '{}GHz'.format(
            self.random.uniform(
                a=1.5,
                b=4.3,
                precision=1,
            ),
        )