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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 remove_member(self, member_id):
 """ Remove an existing member from the cluster. :param member_id: ID of the member to remove """

        member_rm_request = etcdrpc.MemberRemoveRequest(ID=member_id)
        self.clusterstub.MemberRemove(
            member_rm_request,
            self.timeout,
            credentials=self.call_credentials,
            metadata=self.metadata
        )