| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/envoyproxy/go-control-plane/envoy/config/core/v3 | |
| github.com/envoyproxy/go-control-plane/envoy/service/discovery/v3 | |
| google.golang.org/genproto/googleapis/rpc/status | |
| google.golang.org/grpc/codes | Package codes defines the canonical error codes used by gRPC. |
| google.golang.org/grpc/grpclog | Package grpclog defines logging for grpc. |
| google.golang.org/grpc/internal/backoff | Package backoff implement the backoff strategy for gRPC. |
| google.golang.org/grpc/internal/buffer | Package buffer provides an implementation of an unbounded buffer. |
| google.golang.org/grpc/internal/grpclog | Package grpclog provides logging functionality for internal gRPC packages, outside of the functionality provided by the external `grpclog` package. |
| google.golang.org/grpc/internal/pretty | Package pretty defines helper functions to pretty-print structs for logging. |
| google.golang.org/grpc/xds/internal/xdsclient/transport | Package transport defines the interface that describe the functionality required to communicate with an xDS server using streaming calls. |
| google.golang.org/grpc/xds/internal/xdsclient/xdsresource | Package xdsresource implements the xDS data model layer. |
| google.golang.org/protobuf/types/known/anypb | Package anypb contains generated types for google/protobuf/any.proto. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
| sync/atomic | Package atomic provides low-level atomic memory primitives useful for implementing synchronization algorithms. |
| time | Package time provides functionality for measuring and displaying time. |