20 Compute Units.
Parameters
None.Returns
result integer The subscription id (needed to unsubscribe).
slotsUpdatesNotification object. The notification object with the following fields:
parentinteger The parent slot.slotinteger The newly updated slot.timestampinteger The Unix timestamp of the update.typestring The update type, which may be one of the following: ‘firstShredReceived’, ‘completed’, ‘createdBank’, ‘frozen’, ‘dead’, ‘optimisticConfirmation’ or ‘root’.