def find_server(client, address_str)
      client.cluster.servers_list.detect{ |s| s.address.to_s == address_str }
    end
def find_server(client, address_str)
      client.cluster.servers_list.detect{ |s| s.address.to_s == address_str }
    end
Convenience helper to find a server by it's URI.

 @since 2.0.0