| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| errors | Package errors implements functions to manipulate errors. |
| github.com/envoyproxy/go-control-plane/envoy/config/core/v3 | |
| github.com/envoyproxy/go-control-plane/envoy/service/discovery/v3 | |
| github.com/golang/protobuf/ptypes/any | |
| google.golang.org/genproto/googleapis/rpc/status | |
| google.golang.org/grpc | Package grpc implements an RPC system called gRPC. |
| google.golang.org/grpc/codes | Package codes defines the canonical error codes used by gRPC. |
| google.golang.org/grpc/status | Package status implements errors returned by gRPC. |
| io | Package io provides basic interfaces to I/O primitives. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |