| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| encoding/json | Package json implements encoding and decoding of JSON as defined in RFC 7159. |
| errors | Package errors implements functions to manipulate errors. |
| 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/config/endpoint/v3 | |
| github.com/envoyproxy/go-control-plane/envoy/service/load_stats/v3 | |
| 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/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/clients | Package clients provides implementations of the clients to interact with xDS and LRS servers. |
| google.golang.org/grpc/xds/internal/clients/internal | Package internal contains helpers for xDS and LRS clients. |
| google.golang.org/grpc/xds/internal/clients/internal/backoff | Package backoff implements the backoff strategy for clients. |
| google.golang.org/protobuf/proto | Package proto provides functions operating on protocol buffer messages. |
| google.golang.org/protobuf/types/known/durationpb | Package durationpb contains generated types for google/protobuf/duration.proto. |
| io | Package io provides basic interfaces to I/O primitives. |
| 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. |