kubernetes/vendor/go.etcd.io/etcd/server/v3/etcdserver/api/v3lock/lock.go

type lockServer …

func NewLockServer(c *clientv3.Client) v3lockpb.LockServer { … }

func (ls *lockServer) Lock(ctx context.Context, req *v3lockpb.LockRequest) (*v3lockpb.LockResponse, error) { … }

func (ls *lockServer) Unlock(ctx context.Context, req *v3lockpb.UnlockRequest) (*v3lockpb.UnlockResponse, error) { … }