nl_tokens: A class to hold the state of a backoff operation . Accepts a backoff strategy to generate the backoff delays .
pl_tokens: function Backoff ( backoffStrategy ) { events . EventEmitter . call ( this ) ; this . backoffStrategy_ = backoffStrategy ; this . maxNumberOfRetry_ = - 1 ; this . backoffNumber_ = 0 ; this . backoffDelay_ = 0 ; this . timeoutID_ = - 1 ; this . handlers = { backoff : this . onBackoff_ . <mask> ( this ) } ; }