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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 clone_(self, quiet=False):
 """ Clone the DataSwim instance """

        ds2 = self._duplicate_(quiet=True)
        if ds2 is None:
            self.err("Can not clone instance")
        else:
            if quiet is False:
                self.ok("Instance cloned")
        return ds2