Type Alias Backpressure

Backpressure: (cb?: () => any) => boolean

A backpressure controller: returns true if downstream is ready to accept data.

- (cb?: () => any): boolean
- Parameters
  - Optionalcb: () => any
    (optional) - a callback to run when the downstream consumer wishes to resume event production (i.e., when a sink calls Throttle.resume()). The callback is automatically unregistered when invoked, so the producer must re-register it after each call if it wishes to keep being called.
  Returns boolean