Cancel an existing subscription by passing the id returned in the subscribe call
Prevents future publish events from calling subscribers
A single issue subscription. Once the function for an order fires, it is automatically canceled
Optional
useCurrentIssue: booleanDetermines if the order can be filled by the current issue
Signal a publish event to subscribers with the given content
Optional
content: TResumes calling subscribers on publish events
Specify a function to fire on future publish events | id returned allows caller to cancel subscription
Optional
useCurrentIssue: boolean
Coordinates subscriber actions with publish events