docs: def flavor_list(self, **kwargs):
          '''
          Return a list of available flavors (nova flavor-list)
          '''
          nt_ks = self.compute_conn
          ret = {}
          for flavor in nt_ks.flavors.list(**kwargs):
              links = {}
              for link in flavor.links:
                  links[link['rel']] = link['href']
              ret[flavor.name] = {
                  'disk': flavor.disk,
                  'id': flavor.id,
                  'name': flavor.name,
                  'ram': flavor.ram,
                  'swap': flavor.swap,
                  'vcpus': flavor.vcpus,
                  'links': links,
              }
              if hasattr(flavor, 'rxtx_factor'):
                  ret[flavor.name]['rxtx_factor'] = flavor.rxtx_factor
          return ret