if m == nil {
		return
	}
	m.leader.On(name)
}

func (m *defaultLeaderMetrics) leaderOff(name string) {
	if m == nil {
		return
	}
	m.leader.Off(name)
}

type noMetrics struct{}

func (noMetrics) leaderOn(name string)  {}
func (noMetrics) leaderOff(name string) {}

// MetricsProvider generates various metrics used by the leader election.
type MetricsProvider interface {

		return nil, fmt.Errorf("lock must not be nil")
	}
	le := LeaderElector{
		config:  lec,
		clock:   clock.RealClock{},
		metrics: globalMetricsFactory.newLeaderMetrics(),
	}
	le.metrics.leaderOff(le.config.Name)
	return &le, nil
}

type KeyComparisonFunc func(existingKey string) bool

type LeaderElectionConfig struct {
	// Lock is the resource that will be used for locking