public static HealthCheckedEndpointGroupBuilder builder(EndpointGroup delegate, String path) {
        return new HealthCheckedEndpointGroupBuilder(delegate, path);
    }
Returns a newly created {@link HealthCheckedEndpointGroupBuilder} that builds
a {@link HealthCheckedEndpointGroup} which sends HTTP {@code HEAD} health check requests.

@param delegate the {@link EndpointGroup} that provides the candidate {@link Endpoint}s
@param path     the HTTP request path, e.g. {@code "/internal/l7check"}
core/src/main/java/com/linecorp/armeria/client/endpoint/healthcheck/HealthCheckedEndpointGroup.java