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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 copy(self):
 """Make a copy of this client. Copies the local data stored as simple types but does not copy the current state of any open connections with the Cloud Bigtable API. :rtype: :class:`.Client` :returns: A copy of the current client. """

        return self.__class__(
            project=self.project,
            credentials=self._credentials,
            user_agent=self.user_agent,
        )