public static class Builder extends BaseProviderMetadata.Builder {
protected Builder(){
id("rackspace-autoscale-uk")
.name("Rackspace Auto Scale UK")
.apiMetadata(new AutoscaleApiMetadata().toBuilder()
.identityName("${userName}")
.credentialName("${apiKey}")
.defaultEndpoint("https://lon.identity.api.rackspacecloud.com/v2.0/")
.endpointName("Rackspace Cloud Identity service URL ending in /v2.0/")
.documentation(URI.create("http://docs.rackspace.com/cas/api/v1.0/autoscale-devguide/content/Overview.html"))