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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 configure_node(self, node):
 """Slaves need to know if they are collocated and what files have moved."""


        node.slaveinput['cov_master_host'] = socket.gethostname()
        node.slaveinput['cov_master_topdir'] = self.topdir
        node.slaveinput['cov_master_rsync_roots'] = [str(root) for root in node.nodemanager.roots]