clientv3: document context to "Snapshot" API
@@ -55,6 +55,8 @@ type Maintenance interface {
HashKV(ctx context.Context, endpoint string, rev int64) (*HashKVResponse, error)
// Snapshot provides a reader for a point-in-time snapshot of etcd.
+ // If the context "ctx" is canceled or timed out, reading from returned
+ // "io.ReadCloser" would error out (e.g. context.Canceled, context.DeadlineExceeded).
Snapshot(ctx context.Context) (io.ReadCloser, error)
// MoveLeader requests current leader to transfer its leadership to the transferee.
