public <T> ClientFactoryBuilder channelOption(ChannelOption<T> option, T value) {
        requireNonNull(option, "option");
        requireNonNull(value, "value");
        channelOptions(ImmutableMap.of(option, value));
        return this;
    }
Sets the options of sockets created by the {@link ClientFactory}.
core/src/main/java/com/linecorp/armeria/client/ClientFactoryBuilder.java