The etcd project (since version 3.5) is organized into multiple golang modules hosted in a single repository. There are following modules: go.etcd.io/etcd/api/v3 - contains API definitions (like protos & proto-generated libraries) that defines communication protocol between etcd clients and server. go.etcd.io/etcd/pkg/v3 - collection of utility packages used by etcd without being specific to etcd itself. A package belongs here only if it could possibly be moved out into its own repository in ...
