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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 delete_peer(self, peerAddr):
 """Delete a peer."""

        if _debug: BTR._debug("delete_peer %r", peerAddr)

        # get the peer networks
        # networks = self.peers[peerAddr]

        ### send a control message upstream that these are no longer reachable

        # now delete the peer
        del self.peers[peerAddr]