code: def hub_virtual_network_connections(self):
          
          api_version = self._get_api_version('hub_virtual_network_connections')
          if api_version == '2018-04-01':
              from .v2018_04_01.operations import HubVirtualNetworkConnectionsOperations as OperationClass
          else:
              raise NotImplementedError("APIVersion {} is not available".format(api_version))
          return OperationClass(self._client, self.config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)))
docs: Instance depends on the API version:
  
             * 2018-04-01: :class:`HubVirtualNetworkConnectionsOperations<azure.mgmt.network.v2018_04_01.operations.HubVirtualNetworkConnectionsOperations>`