public static NodesSpecification from(ModelElement nodesElement, ConfigModelContext context) {
        return create(true,
                      ! context.getDeployState().getProperties().isBootstrap(),
                      context.getDeployState().getWantedNodeVespaVersion(),
                      nodesElement,
                      context.getDeployState().getWantedDockerImageRepo(),
                      context.getDeployState().getProperties().cloudAccount());
    }
Returns a requirement for dedicated nodes taken from the given <code>nodes</code> element
config-model/src/main/java/com/yahoo/vespa/model/builder/xml/dom/NodesSpecification.java