code: def get_router_options(self, datacenter=None, flavor=None):
          
          package = self._get_package()
  
          location = self._get_location(package['regions'], datacenter)
          item = self._get_item(package, flavor)
  
          return self._get_backend_router(location['location']['locationPackageDetails'], item)
docs: Returns available backend routers for the dedicated host.