public TenantResource internalEndpoint(String region) {
   return client.target(regions.get(region).getInternalURL(), TenantResource.class);
 }
 public TenantResource administrationEndpoint(String region) {
   return client.target(regions.get(region).getAdminURL(), TenantResource.class);
 }
 public TenantResource publicEndpoint(String region) {
   return client.target(regions.get(region).getPublicURL(), TenantResource.class);
 }