class Airbrake::PerformanceNotifier

def initialize
  @config = Airbrake::Config.instance
  @flush_period = Airbrake::Config.instance.performance_stats_flush_period
  @async_sender = AsyncSender.new(:put)
  @sync_sender = SyncSender.new(:put)
  @schedule_flush = nil
  @filter_chain = FilterChain.new
  @payload = {}.extend(MonitorMixin)
  @has_payload = @payload.new_cond
end