lifecycle/f_sleep library
Functions
- 
  fsleep(dynamic cancellationTokenOrExecutionContext, Duration? duration) → Future< void> 
- 
  Provide a "sleeping" Promisethat completes via timeout or cancellationToken @param cancellationToken The cancellation token to cancel "sleeping" @param ms Timeout delay in milliseconds. If ommited, the "sleeping"Promisewill sleep infinitely and wait for cancellation token activation