code: def deactivate(self, address):
          
          log_debug("[#0000]  C: <ROUTING> Deactivating address %r", address)
          # We use `discard` instead of `remove` here since the former
          # will not fail if the address has already been removed.
          self.routing_table.routers.discard(address)
          self.routing_table.readers.discard(address)
          self.routing_table.writers.discard(address)
          log_debug("[#0000]  C: <ROUTING> table=%r", self.routing_table)
          super(RoutingConnectionPool, self).deactivate(address)
docs: Deactivate an address from the connection pool,
          if present, remove from the routing table and also closing
          all idle connections to that address.