code: public AdvancedNetworkConfig setClientEndpointConfig(ServerSocketEndpointConfig serverSocketEndpointConfig) {
          serverSocketEndpointConfig.setProtocolType(ProtocolType.CLIENT);
          endpointConfigs.put(CLIENT, serverSocketEndpointConfig);
          return this;
      }
docs: Sets the server socket endpoint config for {@link ProtocolType#CLIENT CLIENT} protocol. If another
  {@code ServerSocketEndpointConfig} was previously set, it will be replaced. When starting a Hazelcast
  instance with {@code AdvancedNetworkConfig} enabled, its configuration may include
  at most one {@code ServerSocketEndpointConfig} for protocol type {@code CLIENT}.
  
  @param serverSocketEndpointConfig the server socket endpoint configuration
  @return this object for fluent chaining