code: func DefaultRaftConfig() api.RaftConfig {
  	return api.RaftConfig{
  		KeepOldSnapshots:           0,
  		SnapshotInterval:           10000,
  		LogEntriesForSlowFollowers: 500,
  		// Recommended value in etcd/raft is 10 x (HeartbeatTick).
  		// Lower values were seen to have caused instability because of
  		// frequent leader elections when running on flakey networks.
  		HeartbeatTick: 1,
  		ElectionTick:  10,
  	}
  }
docs: // DefaultRaftConfig returns a default api.RaftConfig.