public SELF clientOptions(ClientOptions clientOptions) {
        clientOptionsBuilder.options(requireNonNull(clientOptions, "clientOptions"));
        return self();
    }
Sets the {@link ClientOptions} of the {@link Client} that sends health check requests.
This method can be useful if you already have an Armeria client and want to reuse its configuration,
such as using the same decorators.
<pre>{@code
WebClient myClient = ...;
// Use the same settings and decorators with `myClient` when sending health check requests.
builder.clientOptions(myClient.options());
}</pre>
core/src/main/java/com/linecorp/armeria/client/endpoint/healthcheck/AbstractHealthCheckedEndpointGroupBuilder.java